10th Standard Syllabus & Materials
10th Standard
TN 10th Tamil நாகரிகம், நாடு, சமூகம் - கவிதை பேழை (செய்யுள்) -முத்தொள்ளாயிரம் Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil அறம்,தத்துவம், சிந்தனைகவிதை பேழை (செய்யுள்) -அக்கறை Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil உயிரின்ஓசை - துணைப்பாடம் -பிருமம் Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil அறம், தத்துவம், சிந்தனை - கவிதை பேழை (செய்யுள்) -தேம்பாவணி * Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil கலை, அழகியல், புதுமை - உரைநடை உலகம் -பன்முகக் கலைஞர் Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil மணற்கேணி - இலக்கணம் - இலக்கணம் -பொது Sample Question Papers Study Material - QB365 Set A

Published on: 05/12/2020
10th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Nine
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
2.
How many parts are there in the Scratch Editor?
4
2
3
1
3.
____________ is not a method of treatment for cancer.
Surgery
Immunotherapy
Vasectomy
Radiation therapy
4.
Blood dotting factors produced by biotechnology helps patients suffering from__________.
haemophilia
homeostasis
cerebral palsy
CHD
5.
Which of the following is formed when soap water acts on clothes to remove dirt or grease?
acetic acid
Micelle
Ethyl alcohol
all the above
6.
The deficiency of insulin causes ______
diabetes mellitus
tetany
thyroid dysfunction
cretinism
7.
_____ promotes the development and enlargement of all tissues of the body.
GH
TSH
GTH
ACTH
8.
Auxins were identified by ______
Darwin
Kogi
Went
Funk
9.
Alcohols + Acids Esters. This reaction is ___________
Ester hydrolysis
Esterification
Dehydrogenation
Oxidation
10.
Cyclobutane is an example of ______________ compounds.
a cyclic
cyclic
aromatic
alicyclic
11.
Minerals like __________ slowly penetrate in and replace the original organic tissue and forms a rock like fossil.
calcium
sodium
magnesium
silica
12.
A human brain is formed of ______ main parts.
three
four
two
six
13.
The value of ionic product of water at 25°C is ____________
1.00 x 1014
1.00 x 10-14
1.00 X 104
1.00 X 10-4
14.
Formation of ammonia from nitrogen and hydrogen is an example of __________ reaction.
Thermal decomposition
Combination
Precipitation
Displacement
15.
The product formed when calcium oxide reacts with water is
Slaked lime
Carbon dioxide
Calcium oxide
Oxygen gas
16.
Gas laws state the relationship between _____ properties of gas.
pressure
volume
Temperature & mass
all the above
17.
The coolant used in fast breeder reactor is
ordinary water
heavy water
liquid sodium
boron carbide
18.
Non-aqueous solvent is ____________
benzene
ether
CS2
All the above
19.
Hygroscopic substances are used as __________ agents.
oxidizing
reducing
decarboxylating
drying
20.
21.
22.
Sound energy passing per second through a unit area held perpendicular is called.
intensity
frequency
amplitude
quality
23.
In human, each cell normally consists _________of chromosomes.
23 pairs
22 pairs
20 pairs
12 pairs
24.
The chief ore of copper is ________
Chalcopyrite
Copper glance
Cyprite
Ruby copper
25.
Electronegativity values are based on ______________
bond energy
electron affinity
ionisation energy
all the above
26.
Potassium belongs to ________ period
First
Second
Third
Fourth
27.
Lack of menstruation generally indicates________
Pregnancy
Anemia
Amenorrhea
Over weight
28.
_________is a basal part of the Ovule.
Chalaza
Micropyle
Nucellus
Funiculus
29.
___________is the main circulatory medium in the human body.
Blood
Water
Lymph
Plasma
30.
Atomicity of Sulphur is
1
2
4
8
31.
The urinogenital canal of female rabbit is formed by union of_________
urethra and vagina
urinary bladder and urethra
cowper's gland and urinary bladder
urinary bladder and vagina
32.
A bird sitting on an uninsulated wire carrying a current feels quite safe because
the bird is non-conductor of electricity
resistance of the bird is very large
there is a large potential difference between bird and wire
there is no potential difference between bird and wire
33.
Atomicity of Chlorine and Neon is
Mono atomic and mono atomic
Mono atomic and diatomic
Diatomic and diatomic
Diatomic and mono atomic
34.
If resistance decreases, then current will
increase
double
decrease
constant
1.
(d)
2.
(c)
3
3.
(c)
Vasectomy
4.
(a)
haemophilia
5.
(b)
Micelle
6.
(a)
diabetes mellitus
7.
(a)
GH
8.
(c)
Went
9.
(b)
Esterification
10.
(d)
alicyclic
11.
(d)
silica
12.
(a)
three
13.
(b)
1.00 x 10-14
14.
(b)
Combination
15.
(a)
Slaked lime
16.
(d)
all the above
17.
(c)
liquid sodium
18.
(d)
All the above
19.
(d)
drying
20.
(b)
21.
(c)
22.
(a)
intensity
23.
(a)
23 pairs
24.
(a)
Chalcopyrite
25.
(d)
all the above
26.
(d)
Fourth
27.
(a)
Pregnancy
28.
(a)
Chalaza
29.
(a)
Blood
30.
(d)
8
31.
(d)
urinary bladder and vagina
32.
(d)
there is no potential difference between bird and wire
33.
(d)
Diatomic and mono atomic
34.
(a)
increase
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Tamilnadu Stateboard Standards