10th Standard CBSE Science Study material & Free Online Practice Tests - View and download Sample Question Papers with Solutions for Class 10 Session 2019 - 2020 CBSE

10th CBSE Science The Human Eye and the Colourful World Model Question Paper - by Prerna - Bangalore Aug 20, 2019 - View & Download

• 1)

The change in focal length of an eye lens is caused by the action of the

• 2)

A student sitting on the bench can read the letters written on the blackboard but is not able to read the letters written in his text book.Which of the following statement is correct?

• 3)

The danger signals installed at the top of tall buildings are red in colour.These can be easily seen from a distance because among all other colours, the red light

• 4)

The bluish colour of water in deep sea is due to

• 5)

Which of the following statement is correct?

10th Standard CBSE Science Light Reflection and Refraction Model Question Paper - by Prerna - Bangalore Aug 19, 2019 - View & Download

• 1)

Which one of the following materials cannot be used to make a lens?

• 2)

Where should an object be placed in front of a convex lens to get a real image of the size of the object?

• 3)

No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

• 4)

A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm infront of the mirror. The focal length of this mirror is.

• 5)

Which of the following statements is true?

10th Standard CBSE Science Heredity and Evolution Model Question Paper - by Prerna - Bangalore Aug 17, 2019 - View & Download

• 1)

An example of homologous organs is

• 2)

The maleness of a child is determined by

• 3)

Select the incorrect statement

• 4)

A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?

• 5)

In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is

10th Standard CBSE Science How do Organisms Reproduce Model Question Paper - by Prerna - Bangalore Aug 16, 2019 - View & Download

• 1)

Asexual reproduction takes place through budding in

• 2)

The anther contains

• 3)

Characters transmitted from parents to offspring are present in

• 4)

The correct sequence of reproductive stages seen in flowering plants is

• 5)

InRhizopus, tubular thread-like structures bearing sporangia at their tips are called

10th Standard CBSE Science Unit 10 Periodic Classification of Elements Model Question Paper - by Prerna - Bangalore Aug 14, 2019 - View & Download

• 1)

Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table?

• 2)

In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later

• 3)

Which of the following statements about the Modern Periodic Table is correct:

• 4)

An element which is an essential constituent of all organic compounds belong to

• 5)

Which of the following gives the correct increasing order of the atomic radii of O, F and N?

10th Standard CBSE Science Carbon and Its Compounds Model Question Paper - by Prerna - Bangalore Aug 13, 2019 - View & Download

• 1)

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that

• 2)

A molecule of ammonia (NH3) has

• 3)

Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of

• 4)

The soap molecule has a

• 5)

Chlorine reacts with saturated hydrocarbons at room temperature in the

10th Standard CBSE Science Unit 8 Sources of Energy Model Question Paper - by Prerna - Bangalore Aug 12, 2019 - View & Download

• 1)

A solar water heater cannot be used to get hot water on

• 2)

In a hydro power plant

• 3)

Which part of the solar cooker is responsible for greenhouse effect?

• 4)

Choose the correct statement?

• 5)

Choose the incorrect statement

10th Standard CBSE Science Magnetic Effects of Electric Current Model Question Paper - by Prerna - Bangalore Aug 05, 2019 - View & Download

• 1)

Which of the following correctly describes the magnetic field near a long straight wire ?

• 2)

The phenomenon of electromagnetic induction is

• 3)

Choose the incorrect statement from the following regarding magnetic lines of field.

• 4)

Choose the incorrect statement

• 5)

The strength of magnetic field inside a long current carrying straight solenoid is

10th Standard CBSE Science Electricity Model Question Paper - by Prerna - Bangalore Aug 03, 2019 - View & Download

• 1)

If I is the current through a wire and 1 is the charge of electron, then no. of electrons in t seconds will be

• 2)

Electrical resistivity of a given metallic wire depends upon

• 3)

The resistivity does not charge if

• 4)

Unit of electric power may also be expressed as

• 5)

Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of heat produced in series and parallel combination would be

10th CBSE Science Unit 5 Control and Coordination Sample Question Paper - by Prerna - Bangalore Jul 31, 2019 - View & Download

• 1)

Which of the following is a plant hormone?

• 2)

The brain is responsible for

• 3)

In a neuron, conversion of electrical signal to a chemical signal occurs at/in

• 4)

Which of the following statements are true about the brain?
(i) The main thinking part of brain is hind brain
(ii) Centres of hearing, smell, memory, sight, etc. are located in forebrain.
(iii) Involuntary actions like salivation, vomiting, blood pressure are controlled by the medulla in the hind brain
(iv) Cerebellum does not control posture and balance of the body

• 5)

The movement of shoot towards light is

10th CBSE Science Unit 4 Life Process Important Question Paper - by Prerna - Bangalore Jul 29, 2019 - View & Download

• 1)

The kidneys in human beings are a part of the system for

• 2)

The autotrophic mode of nutrition requires

• 3)

Select the correct statement

• 4)

Complete digestion of carbohydrates, proteins and fats takes place in

• 5)

Carbohydrate in humans is stored in the form of

10th CBSE Science Unit 3 Metals and Non-Metals Important Question Paper - by Prerna - Bangalore Jul 27, 2019 - View & Download

• 1)

Which of the following pairs will give displacement reactions?

• 2)

Which of the following methods is suitable for preventing an iron frying pan from rusting?

• 3)

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

(i) Good thermal conductivity

(ii) Good electrical conductivity

(iii) Ductility

(iv) High melting point

• 4)

Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?

• 5)

Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

10th Standard CBSE Science Unit 2 Acids, Bases and Salts Important Question Paper - by Prerna - Bangalore Jul 26, 2019 - View & Download

• 1)

A solution turns red litmus blue; its pH is likely to be?

• 2)

A solution reacts with crushed egg-shells to give a gas that turns lime-water milky.  The solution contains.

• 3)

10 ml of a solution of NaOH is found to be completely neutralised by 8 ml of a given solution of HCl.  If we take 20 ml of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be

• 4)

Which one of the following type of medicines is used for treating indigestion?

• 5)

What happens when a solution of an acid is mixed with a solution of a base in a test tube?

(a) The temperature of the solution increases

(b) The temperature of the solution decreases

(c) The temperatures of the solution remains the same

(d) Salt formation takes place

10th Standard CBSE Chemical Reactions and Equations Important Question Paper - by Prerna - Bangalore Jul 25, 2019 - View & Download

• 1)

Which of the following statements about the reaction below are incorrect?
2PbO(s) + C(s) $\rightarrow$ 2Pb(s) + CO2(s)
(a) Lead is getting reduced        (b) Carbon dioxide is getting oxidized
(c) Carbon is getting oxidized     (d) Lead oxide is getting reduced.

• 2)

Fe2O3 + 2Al $\rightarrow$ Al2O3 + 2Fe. The reaction is an example of a

• 3)

What happens when dilute hydrochloride acid is added to iron fillings? Tick the correct answer.

• 4)

In the reaction,
SO2(g) + 2H2S(g) $\rightarrow$ 2H2O(l) + S(s), the reducing agent is

• 5)

Chemically rust is

Class 10 CBSE Science Mock Test - by Pragathi Dec 29, 2018 - View & Download

• 1)

State a reaction in which SO2 acts as an oxidising agent.

• 2)

What is meant by a saturated hydrocarbon?

• 3)

Write balanced chemical equations for each of the following reactions and also classify them.
(a) Lead acetate solution is treated with dilute hydrochloric acid to form lead chloride and acetic acid solution.
(b) A piece of sodium metal is added to absolute ethanol to form sodium ethoxide and hydrogen gas.
(c) Iron (III) oxide on heating with carbon monoxide gas reacts to form solid iron and liberates carbon dioxide gas.
(d) Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur and liquid water.

• 4)

You are given a hammer, a battery, a bulb, wires and a switch :

(a) How could you use them to distinguish between samples of metals and non-metals?

(b) Assess the usefulness of these tests in distinguishing between metals and non-metals.

• 5)

Give one example, acids and bases used in each of the following:

(a) Calcium salt

(b) Nitrate salt

(c) Chloride salt

10th Standard CBSE Science Public Model Question Paper - by Pragathi Dec 29, 2018 - View & Download

• 1)

What are two types of reducing agents used to reduce metal oxide?

• 2)

The molecular formula of 'A'. is C10H18 and 'B' is C18H36  Name the homologous series to which they belong

• 3)

Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction.

• 4)

What is lymph? How is composition of lymph different from blood plasma?  List two functions of lymphatic system.

• 5)

How would you derive the equivalent resistance when two resistors are placed in (a) parallel and (b) series?

How do Organisms Reproduce Important Questions 10th CBSE Science - by Pragathi Dec 15, 2018 - View & Download

• 1)

Asexual reproduction takes place through budding in

• 2)

The anther contains

• 3)

InRhizopus, tubular thread-like structures bearing sporangia at their tips are called

• 4)

Which among the following statements are true for unisexual flowers?
(i)They possess both stamen and pistil
(ii)They possess either stamen or pistil
(iii)They exhibit cross pollination
(iv)Unisexual flowers possessing only stamens cannot produce fruits

• 5)

Which among the following diseases is not sexually transmitted?

10th Science Heredity and Evolution Important Questions - by Pragathi Dec 07, 2018 - View & Download

• 1)

A mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as

• 2)

Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be

• 3)

If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr YY) the seeds produced in FI generation are

• 4)

A zygote which has an X - chromosome inherited from the father will develop into a

• 5)

Select the correct statement

10th Science Light Reflection and Refraction Important Questions - by Pragathi Dec 05, 2018 - View & Download

• 1)

The image formed by a concave mirror is observed to be virtual, erect and larger than the object.Where should be the position of the object?

• 2)

Where should an object be placed in front of a convex lens to get a real image of the size of the object?

• 3)

No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

• 4)

Which of the following statements is true?

• 5)

Magnification produced by a rear view mirror fitted in vehicles

10th Science The Human Eye and the Colourful World Important Question Paper - by Pragathi Dec 03, 2018 - View & Download

• 1)

The human eye can focus object at different disrtances by adjusting the focal length of the eye lens.This is due to

• 2)

The change in focal length of an eye lens is caused by the action of the

• 3)

Twinkling of stars is due to atmospheric

• 4)

The focal length of the eye lens increases when eye muscles

• 5)

Which of the following statement is correct?

10th CBSE Science Our Environment Important Questions - by Pragathi Dec 01, 2018 - View & Download

• 1)

Which of the following groups contain only  biodegradable items?

• 2)

An ecosystem includes

• 3)

In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of

• 4)

Which of the statement is incorrect?

• 5)

If a grass hopper is eaten by a frog, then the energy transfer will be from

10th CBSE Science Management of Natural Resources Important Question Paper - by Pragathi Nov 30, 2018 - View & Download

• 1)

From the list given below pick the item that is not a natural resource

• 2)

The pH range most conductive for life of fresh water plants and animals is

• 3)

A successful forest conservation strategy should involve

• 4)

Ground water will not be depleted due to

• 5)

Select the eco-friendly activity among the following

10th Science Revision Model Question Paper 1 - by Pragathi Nov 29, 2018 - View & Download

• 1)

State one basic difference between a physical change and a chemical change.

• 2)

Name the ores of mercury.

• 3)

Name a non-metal which is lustrous and a metal which is non-lustrous.

• 4)

What is meant by metallurgy?

• 5)

Which pancreatic enzyme is effective in digesting proteins?

NOVEMBER PHYSICS REVISION 2 - by MAHARISHI VIDYA MANDIR SENIOR SECONDARY Nov 26, 2018 - View & Download

• 1)

Why is the series arrangement not used for connecting domestic electric appliances in a circuit?

• 2)

Out of 60 W and 40 W lamps, which one has a higher electrical resistance when in use?

• 3)

What is the advantage of the third wire of earth connection in domestic electric appliances?

• 4)

Which has a higher resistance: a 50 W lamp bulb or a 25 W lamp bulb and how many times?

• 5)

Should the heating element of an electric iron be made of iron, silver or nichrome wire?

Chemical Reactions And Acids, Bases And Salts Important Question Paper 2 In 10th Science - by Manoj Sharma Oct 13, 2018 - View & Download

• 1)

Classify the following reactions into slow and fast reaction:
(i) Reaction between an acid and a base
(ii) Rusting of iron

• 2)

What is the role of a catalyst in a chemical

• 3)

Give an example of photochemical reactions.

• 4)

What type of reaction is this:
Na2SO4 + BaCl2 $\rightarrow$ BaSO4 + 2NaCl

• 5)

Name the reaction seen during rancidity of food.

10th Standard CBSE Science Important Questions - by Pragathi Sep 15, 2018 - View & Download

• 1)

A solar water heater cannot be used to get hot water on

• 2)

Which of the following is not an example of a bio-mass energy source?

• 3)

A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm infront of the mirror. The focal length of this mirror is.

• 4)

Under which of the following conditions a concave mirror can form an image larger than the actual object?

• 5)

The path of a ray of light coming from air passing through a rectangular glass slab traced by four students are shown as A, B, C and D in Figure. Which one of them is correct?

Light Reflection And Refraction Important Question Paper 1 In 10th Science - by Pragathi Aug 01, 2018 - View & Download

• 1)

Which one of the following materials cannot be used to make a lens?

• 2)

Where should an object be placed in front of a convex lens to get a real image of the size of the object?

• 3)

No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

• 4)

Which of the following can make a parallel beam of light when light from a point source is incident on it?

• 5)

Which of the following statements is true?

Important Model Question Paper Of Heredity And Evolution In 10th Science - by Pragathi Aug 01, 2018 - View & Download

• 1)

An example of homologous organs is

• 2)

Which of the following statement is incorrect?

• 3)

A zygote which has an X - chromosome inherited from the father will develop into a

• 4)

New species may be formed if
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place

• 5)

A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?

Periodic Classification Of Elements Important Question Paper 1 In 10th Science - by Pragathi Jul 31, 2018 - View & Download

• 1)

Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table?

• 2)

In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later

• 3)

Which of the following statements about the Modern Periodic Table is correct:

• 4)

An element which is an essential constituent of all organic compounds belong to

• 5)

Which of the following gives the correct increasing order of the atomic radii of O, F and N?

10th Science Model Question Paper 1 - by Pragathi Jul 31, 2018 - View & Download

• 1)

Butanone is a four-carbon compound with the functional group

• 2)

Buckminsterfullerene is an allotropic form of

• 3)

In the soap micelles

• 4)

The name of the compound CH3 - CH2 - CHO is

• 5)

Structural formula of ethyne is

Sources Of Energy Important Question Paper 1 In 10th Science - by Pragathi Jul 31, 2018 - View & Download

• 1)

Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun's energy?

• 2)

Fuel used in thermal power plant is

• 3)

In a hydro power plant

• 4)

Which is the ultimate source of energy?

• 5)

Which one of the following forms of energy leads to least environment pollution in the process of its harnessing and utilization?

Important Model Question Paper Of Magnetic Effects In 10th Science - by Pragathi Jul 31, 2018 - View & Download

• 1)

Which of the following property of a proton can change while it moves freely in a magnetic field ?

• 2)

The device used for producing electric current is called a

• 3)

For a current in a long straight solenoid N- and S- poles are created at the two ends. Among the following statements, the incorrect statement is

• 4)

To convert an AC generator into DC generator

• 5)

A uniform magnetic field exists in the plane of paper pointing from left to right as shown in Figure. In the field an electron and a proton move as shown in the figure. The electron and the proton experience

Important Model Question Paper Of Electricity In 10th Science - by Pragathi Jul 31, 2018 - View & Download

• 1)

Materials which allow larger current to flow through them are called

• 2)

The unit of specific resistance is

• 3)

The commonly used safety fuse wire is made of

• 4)

Ohm's law is valid only when

• 5)

If I is the current through a wire and 1 is the charge of electron, then no. of electrons in t seconds will be

Important Model Question Paper Of Control And Coordination In 10th Science - by Pragathi Jul 30, 2018 - View & Download

• 1)

Which of the following is a plant hormone?

• 2)

The brain is responsible for

• 3)

In a synapse, chemical signal is transmitted from

• 4)

Which is the correct sequence of the components of a reflex arc?

• 5)

Iodine is necessary for the synthesis of which hormone?

Life Process Important Question Paper 1 In 10th Science - by Pragathi Jul 30, 2018 - View & Download

• 1)

The autotrophic mode of nutrition requires

• 2)

Which of the following statements about the autotrophs is incorrect?

• 3)

Select the correct statement

• 4)

In salivary amylase is lacking in the saliva which of the following events in the mouth cavity will be affected?

• 5)

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

Metals And Non - Metals Important Question Paper 1 In 10th Science - by Pragathi Jul 30, 2018 - View & Download

• 1)

Which of the following pairs will give displacement reactions?

• 2)

The ability of metals to be drawn into thin wire is known as

• 3)

Which one of the following metals do not react with cold as well as hot water?

• 4)

The composition of aqua-regia is

• 5)

Alloys are homogeneous mixtures of a metal with a metal or nonmetal. Which among the following alloys contain non-metal as one of its constituents?

Important Model Question Paper Of Acids, Base And Salts In 10th Science - by Pragathi Jul 27, 2018 - View & Download

• 1)

10 ml of a solution of NaOH is found to be completely neutralised by 8 ml of a given solution of HCl.  If we take 20 ml of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be

• 2)

Which one of the following type of medicines is used for treating indigestion?

• 3)

What happens when a solution of an acid is mixed with a solution of a base in a test tube?

(a) The temperature of the solution increases

(b) The temperature of the solution decreases

(c) The temperatures of the solution remains the same

(d) Salt formation takes place

• 4)

An aqueous solution turns red litmus solution blue.  Excess addition of which of the following solution would reverse the change?

• 5)

During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride.  The role of calcium chloride taken in the guard tube is to

Important Model Question Paper Of Chemical Reactions And Equations In 10th Science - by Pragathi Jul 27, 2018 - View & Download

• 1)

What happens when dilute hydrochloride acid is added to iron fillings? Tick the correct answer.

• 2)

Which of the following is not a physical change?

• 3)

A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?

• 4)

Which among the following statement(s) is (are) true? Exposure of silver chloride to sunlight for a long duration turns grey due to
(i) the formation of silver by decomposition of silver chloride
(ii) sublimation of silver chloride
(iii) decomposition of chlorine gas from silver chloride
(iv) oxidation of silver chloride

• 5)

Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved?
(i) Displacement reaction
(ii) Precipitation reaction
(iii) Combination reaction
(iv) Double displacement reaction

Sources Of Energy Important Question Paper In 10th Science - by NJK Jul 05, 2018 - View & Download

• 1)

In a hydro power plant

• 2)

Ocean thermal energy is due to

• 3)

The power generate in a wind mill

• 4)

In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because

• 5)

Choose the incorrect statement

CBSE Education Study Materials

10th CBSE Science 2019 - 2020 Academic Syllabus Prerna - Bangalore Aug 21, 2019

Science 2019 - 2020 Academic Syllabus

How to get full marks in CBSE Class 10 Science ADMIN-ENGLISH Jan 23, 2019

• Read the NCERT textbook thoroughly.
• Balance the chemical equation properly. Unde...

How to score good marks in CBSE Class 10 Science ADMIN-ENGLISH Jan 23, 2019

Science is factual as well as interesting. Science plays an important role in life.  Science...

Tips to score full marks in CBSE 10th Science ADMIN-ENGLISH Jan 23, 2019

Generally, 10th CBSE science comprises physics, chemistry, and Biology. Here are...

CBSEStudy Material - Sample Question Papers with Solutions for Class 10 Session 2019 - 2020

Latest Sample Question Papers & Study Material for class 10 session 2019 - 2020 for Subjects Maths, Social Science in PDF form to free download for practice. Download QB365 Free Mobile app & get practice question papers.

More than 1000+ CBSE Syllabus Sample Question Papers & Study Material are based on actual Board question papers which help students to get an idea about the type of questions that will be asked in Class 10 Final Board Public examinations. All the Sample Papers are adhere to CBSE guidelines and its marking scheme , Question Papers & Study Material are prepared and posted by our faculty experts , teachers , tuition teachers from various schools in Tamilnadu.

Hello Students, if you like our sample question papers & study materials , please share these with your friends and classmates.