10th Standard Science English Medium All Chapter Book Back and Creative One Marks Questions 2020

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Questions:

Multiple Choice Question

90 x 1 = 90

The project for conservation of_______was launched in 1976

(a)

tiger

(b)

elephant

(c)

lion

(d)

crocodile

Choose the non-renewable energy resource

(a)

Solar energy

(b)

Water

(c)

Minerals

(d)

Wind

Which button is presses to run the script?

(a)

Green flag

(b)

Red flag

(c)

Blue flag

(d)

Yellow flag

In Scratch, the characters are known as_________

(a)

Sprite

(b)

Stage

(c)

Element

(d)

Script

____________ help reduce blood sugar levels.

(a)

Sweet potato

(b)

Tomato

(c)

Beetroot

(d)

Cane sugar

______________ is a symptom of CHD.

(a)

Glycosuria

(b)

Ischemia

(c)

Hyperglycemia

(d)

Polyphagia

Blood dotting factors produced by biotechnology helps patients suffering from__________.

(a)

haemophilia

(b)

homeostasis

(c)

cerebral palsy

(d)

CHD

Dr. Norman received the Nobel peace prize in_________

(a)

1960

(b)

1980

(c)

1956

(d)

1970

The organic acid present in Vinegar is ___________ acid.

(a)

methanoic

(b)

ethanoic

(c)

Propanoic

(d)

Butanoic

10.

Which of the following is formed when soap water acts on clothes to remove dirt or grease?

(a)

acetic acid

(b)

Micelle

(c)

Ethyl alcohol

(d)

all the above

11.

_____ is a natural Auxin.

(a)

Phenyl Acetic Acid

(b)

Indole 3 Butyric Acid

(c)

α - Naphthalene Acetic Acid

(d)

Indole - 3- Propionic Acid

12.

Premature shedding is caused by ______

(a)

auxin

(b)

ethylene

(c)

ABA

(d)

gibberellin

13.

The degenerated wing of ___________ is an example for organ of disuse.

(a)

kiwi

(b)

chicken

(c)

duck

(d)

dove

14.

Ancon sheep is an example of _________.

(a)

vestigial organ

(b)

discontinuous variation

(c)

acquired character

(d)

natural selection

15.

_____ second largest part of the brain formed of two large sized hemispheres.

(a)

Cerebellum

(b)

Cerebrum

(c)

Thalamus

(d)

Diencephalon

16.

A human brain is formed of ______ main parts.

(a)

three

(b)

four

(c)

two

(d)

six

17.

Copper displaces - metal from its solution.

(a)

(b)

(c)

(d)

all the above

18.

Ionic product of water is expressed

(a)

K_w = [Hp⁺] [OH^-]

(b)

K_w = [H⁺] [OH^-]

(c)

both (a) and (b)

(d)

neither (a) nor (b)

19.

At what temperature are Celsius and Fahrenheit equal

(a)

40°

(b)

-40°

(c)

0⁰

(d)

100°

20.

Which of the following has the fastest process of heat transfer?

(a)

Conduction

(b)

convection

(c)

Radiation

(d)

all the above

21.

૪ rays are ________ in charge.

(a)

positive

(b)

negative

(c)

neutral

(d)

none

22.

The control rod in a nuclear reactor is made of

(a)

uranium

(b)

cadmium

(c)

graphite

(d)

plutonium

23.

Which of the following is a saturated solution?

(a)

5g NaCI in 100g water

(b)

10g NaCI in 100g water

(c)

20g NaCI in 100g water

(d)

36g NaCI in 100g water

24.

Solubility of a solute is governed by

(a)

nature of solute and solvent

(b)

temperature

(c)

pressure

(d)

all the above

25.

The distance below the lens and focus is called

(a)

pole

(b)

radius of curvature

(c)

focal length

(d)

principal axis

26.

Bats deflect from the obstacles in their path by receiving the reflected _______ waves.

(a)

radio

(b)

ultrasonic

(c)

electromagnetic

(d)

infrasonic

27.

If the energy of the incident and scattered beam of light are same, then it is called ______ scattering

(a)

Ray light

(b)

Inelastic

(c)

Mie

(d)

Elastic

28.

The pitch of sound depends on

(a)

frequency

(b)

amplitude

(c)

both

(d)

none

29.

In human, each cell normally consists _________of chromosomes.

(a)

23 pairs

(b)

22 pairs

(c)

20 pairs

(d)

12 pairs

30.

Down's syndrome is a case of___________

(a)

Euploidy

(b)

Deletion

(c)

Translocation

(d)

Aneuploidy

31.

The process of extracting the ore from the earth's crust is ____________

(a)

Metallurgy

(b)

Mining

(c)

Smelting

(d)

Leaching

32.

Which of the following is the pair of shortest and longest periods in the modern periodic table?

(a)

1^st, 2^nd

(b)

2^nd, 3^rd

(c)

5^th, 7^th

(d)

1^th, 6^th

33.

The fertilized egg becomes implanted in about_______________ after fertilization

(a)

5-7 days

(b)

5-6 days

(c)

6 - 7 days

(d)

5 - 8 days

34.

The process of spermatogenesis takes place in the___________

(a)

Sertolicel cells

(b)

Seminiferous tubules

(c)

Leydigcells

(d)

Centrioles

35.

Normal pulse rate ranges from________

(a)

80-90/min

(b)

70 -90/min

(c)

50 - 60/min

(d)

70 - 80/min

36.

Persons with __________ blood group can receive blood from 'AB' group individuals.

(a)

'A' only

(b)

B only

(c)

AB and O

(d)

A, B, AB and O

37.

Atomicity of Sulphur is

(a)

(b)

(c)

(d)

38.

The urinogenital canal of female rabbit is formed by union of_________

(a)

urethra and vagina

(b)

urinary bladder and urethra

(c)

cowper's gland and urinary bladder

(d)

urinary bladder and vagina

39.

The number of cranial and spinal nerves in rabbit are_______ respectively

(a)

11 and 36

(b)

12 and 37

(c)

12 and 36

(d)

10 and 37

40.

What would happen, if the force of gravity disappears suddenly on earth?

(a)

All objects would move in a rapid whirl wing

(b)

All object will float

(c)

not possible

(d)

cannot say

41.

Identify the 'hetero nuclear tri atomic molecule' among the following.

(a)

P₄

(b)

H₂SO₄

(c)

CO₂

(d)

O₃

42.

If two unequal resistors connected in parallel then.

(a)

The voltage is same in both resistor

(b)

The current is same in both resistor

(c)

The voltage is larger in one of the resistor

(d)

The current is large in one of the resistor

43.

The relation between potential difference (V) and current (I) was discovered by:

(a)

Volt

(b)

Ohm

(c)

Newton

(d)

Ampere

44.

The act of cleaning a carpet by heating it with a stick is an example for inertia of

(a)

motion

(b)

direction

(c)

rest

(d)

momentum

45.

Global warming will cause

(a)

raise in level of oceans

(b)

melting of glaciers

(c)

sinking of islands

(d)

all of these

46.

Soil erosion is more where there is

(a)

no rainfall

(b)

low rainfall

(c)

rainfall is high

(d)

none of these

47.

Which is used to edit programs?

(a)

Inkscape

(b)

script editor

(c)

stage

(d)

sprite

48.

Which software is used to create animation?

(a)

Paint

(b)

PDF

(c)

MS Word

(d)

Scratch

49.

The loss of one or more chromosome in a ploidy is called_____________.

(a)

Tetraploidy

(b)

Aneuploidy

(c)

Euploidy

(d)

Polyploidy

50.

Okasaki fragments are joined together by ___________________.

(a)

Helicase

(b)

DNA polymerase

(c)

RNA primer

(d)

DNA ligase

51.

Which one is referred as “Master Gland”?

(a)

Pineal gland

(b)

Pituitary gland

(c)

Thyroid gland

(d)

Adrenal gland

52.

Avena coleoptile test was conducted by

(a)

Darwin

(b)

N. Smit

(c)

Paal

(d)

F.W. Went

53.

In a hexaploid wheat( 2n = 6 x = 42 ) the haploid (n) and the basic(x) number of chromosomes respectively are

(a)

n = 7 and x = 21

(b)

n = 21 and x = 21

(c)

n = 7 and x = 7

(d)

n = 21 and x = 7

54.

We can cut the DNA with the help of

(a)

scissors

(b)

restriction endonucleases

(c)

knife

(d)

RNAase

55.

What is true of gametes?

(a)

They are diploid

(b)

They give rise to gonads

(c)

They produce hormones

(d)

They are formed from gonads

56.

Syngamy results in the formation of____________

(a)

Zoospores

(b)

Conidia

(c)

Zygote

(d)

Chlamydospores

57.

The term Ethnobotany was coined by

(a)

Khorana

(b)

J.W. Harshberger

(c)

Ronald Ross

(d)

Hugo de Vries

58.

Paleontologists deal with

(a)

Embryological evidences

(b)

Fossil evidences

(c)

Vestigial organ evidences

(d)

All the above

59.

Node of Ranvier is found in

(a)

muscles

(b)

axons

(c)

dendrites

(d)

cyton

60.

The neurons which carries impulse from the central nervous system to the muscle fibre.

(a)

afferent neurons

(b)

association neurons

(c)

efferent neurons

(d)

unipolar neurons

61.

Where does alcohol effect immediately after drinking?

(a)

eyes

(b)

auditory region

(c)

liver

(d)

central nervous system

62.

Tobacco consumption is known to stimulate secretion of adrenaline. The component causing this could be

(a)

Nicotine

(b)

Tannic acid

(c)

Curcumin

(d)

Leptin

63.

Which is the correct sequence of blood flow

(a)

Ventricle → atrium → vein → arteries

(b)

Atrium → ventricle → veins → arteries

(c)

Atrium → ventricle → arteries → vein

(d)

Ventricles → vein → atrium → arteries

64.

Active transport involves

(a)

Movement of molecules from lower to higher concentrations

(b)

Expenditure of energy

(c)

It is an uphill task

(d)

All of the above

65.

Mammals are ______________ animals.

(a)

Cold blooded

(b)

Warm blooded

(c)

Poikilothermic

(d)

All the above

66.

In leech locomotion is performed by

(a)

Anterior sucker

(b)

Parapodia

(c)

Setae

(d)

Contraction and relaxation of muscles

67.

The pH of a solution is 3. Its [OH^–] concentration is

(a)

1 × 10^–3 M

(b)

(c)

1 × 10^–11 M

(d)

11 M

68.

Photolysis is a decomposition reaction caused by __________

(a)

heat

(b)

electricity

(c)

light

(d)

mechanical energy

69.

Which of the following is hygroscopic in nature?

(a)

ferric chloride

(b)

copper sulphate pentahydrate

(c)

silica gel

(d)

none of the above

70.

The number of components in a binary solution is _____________

(a)

(b)

(c)

(d)

71.

In the aluminothermic process the role of Al is _____.

(a)

oxidizing agent

(b)

reducing agent

(c)

hydrogenating agent

(d)

sulphurising agent

72.

_____ group contains the member of halogen family.

(a)

17^th

(b)

15^th

(c)

18^th

(d)

16^th

73.

Kreb’s cycle takes place in

(a)

chloroplast

(b)

mitochondrial matrix

(c)

stomata

(d)

inner mitochondrial membrane

74.

Casparian strips are present in the _____________ of the root.

(a)

cortex

(b)

pith

(c)

pericycle

(d)

endodermis

75.

____________ isotope is used for the treatment of cancer.

(a)

Radio Iodine

(b)

Radio Cobalt

(c)

Radio Carbon

(d)

Radio Nickel

76.

Man-made radioactivity is also known as ___________.

(a)

Induced radioactivity

(b)

Spontaneous radioactivity

(c)

Artificial radioactivity

(d)

a & c

77.

Rectified spirit is an aqueous solution which contains about _______ of ethanol

(a)

95.5 %

(b)

75.5 %

(c)

55.5 %

(d)

45.5 %

78.

The IUPAC name of an organic compound is 3-Methyl butan-1-ol. What type compound it is?

(a)

Aldehyde

(b)

Carboxylic acid

(c)

Ketone

(d)

Alcohol

79.

The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?

(a)

speed

(b)

frequency

(c)

wavelength

(d)

none of these

80.

Velocity of sound in a gaseous medium is 330 ms^-1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is

(a)

330 ms^-1

(b)

660 ms^-1

(c)

156 ms^-1

(d)

990 ms^-1

81.

The volume occupied by 1 mole of a diatomic gas at S.T.P is

(a)

11.2 liters

(b)

5.6 liters

(c)

22.4 liters

(d)

44.8 liters

82.

The volume occupied by 4.4 g of CO₂ at S.T.P

(a)

22.4 liter

(b)

2.24 liter

(c)

0.24 liter

(d)

0.1 liter

83.

Kilowatt hour is the unit of

(a)

resistivity

(b)

conductivity

(c)

electrical energy

(d)

electrical power

84.

In a simple circuit, why does the bulb glow when you close the switch?

(a)

The switch produces electricity

(b)

Closing the switch completes the circuit.

(c)

Closing the switch breaks the circuit.

(d)

The bulb is getting charged.

85.

Temperature is the average ______ of the molecules of a substance

(a)

difference in K.E and P.E

(b)

sum of P.E and K.E

(c)

difference in T.E and P.E

(d)

difference in K.E and T.E

86.

If a substance is heated or cooled, the linear expansion occurs along the axis of

(a)

X or –X

(b)

Y or –Y

(c)

both (a) and (b)

(d)

(a) or (b)

87.

If V_B, V_G, V_R be the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?

(a)

V_B = V_G = V_R

(b)

V_B> V_G >V_R

(c)

V_B < V_G < V_R

(d)

V_B< V_G > V_R

88.

The eye defect ‘presbyopia’ can be corrected by

(a)

convex lens

(b)

concave lens

(c)

convex mirror

(d)

Bi focal lenses

89.

Impulse is equals to

(a)

rate of change of momentum

(b)

rate of force and time

(c)

change of momentum

(d)

rate of change of mass

90.

Inertia of a body depends on

(a)

weight of the object

(b)

acceleration due to gravity of the planet

(c)

mass of the object

(d)

Both a & b

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Answers Key:

Multiple Choice Question

90 x 1 = 90

(d)
crocodile

(a)
Green flag

(a)
Sprite

(b)
Ischemia

(a)
haemophilia

(d)
1970

(b)
ethanoic

10.

(b)
Micelle

11.

(a)
Phenyl Acetic Acid

12.

(b)
ethylene

13.

(a)
kiwi

14.

(b)
discontinuous variation

15.

(a)
Cerebellum

16.

(a)
three

17.

18.

(b)
K_w = [H⁺] [OH^-]

19.

(b)
-40°

20.

21.

22.

(b)
cadmium

23.

(d)
36g NaCI in 100g water

24.

(d)
all the above

25.

26.

(b)
ultrasonic

27.

(d)
Elastic

28.

(a)
frequency

29.

(a)
23 pairs

30.

(d)
Aneuploidy

31.

(b)
Mining

32.

(d)
1^th, 6^th

33.

34.

(b)
Seminiferous tubules

35.

(b)
70 -90/min

36.

(d)
A, B, AB and O

37.

(d)
8

38.

(d)
urinary bladder and vagina

39.

(b)
12 and 37

40.

(b)
All object will float

41.

42.

(a)
The voltage is same in both resistor

43.

(b)
Ohm

44.

45.

(d)
all of these

46.

47.

(b)
script editor

48.

(d)
Scratch

49.

(b)
Aneuploidy

50.

(d)
DNA ligase

51.

(b)
Pituitary gland

52.

(d)
F.W. Went

53.

(d)
n = 21 and x = 7

54.

(b)
restriction endonucleases

55.

(d)
They are formed from gonads

56.

57.

(b)
J.W. Harshberger

58.

(b)
Fossil evidences

59.

(b)
axons

60.

61.

(d)
central nervous system

62.

(a)
Nicotine

63.

64.

(d)
All of the above

65.

(b)
Warm blooded

66.

(d)
Contraction and relaxation of muscles

67.

68.

69.

70.

(a)
2

71.

(b)
reducing agent

72.

(a)
17^th

73.

(b)
mitochondrial matrix

74.

(d)
endodermis

75.

(b)
Radio Cobalt

76.

(d)
a & c

77.

(a)
95.5 %

78.

(d)
Alcohol

79.

(d)
none of these

80.

(a)
330 ms^-1

81.

82.

(b)
2.24 liter

83.

84.

(b)
Closing the switch completes the circuit.

85.

86.

(d)
(a) or (b)

87.

88.

(d)
Bi focal lenses

89.

90.

10th Standard Science English Medium All Chapter Book Back and Creative One Marks Questions 2020

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