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 with Answer Key 2020 - 2021 Part - 4
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.
World AIDS Day is observed on ______________
1st December
15th December
24th November
1st May
2.
Which of the unique feature (s) of Carbon enables it to form a large number of compounds?
catenation
covalency
tetra valency
both (a) and (c)
3.
_______ is the only planet in the Goldilock zone for life.
Mercury
Earth
Mars
Venus
4.
_____ is an inflammation of the meninges.
Meningitis
Myelin sheath
Piameter
Arachnoid membrane
5.
Pb(NO3)2 + 2KI ⟶ Pbl2 + 2KNO3 is a ______________ reaction
neutralization
Precipitation
decomposition
Combustion
6.
Controlled chain reaction is seen in _________.
atom bombs
nuclear reactors
synchrotron
detectors
7.
8.
Solubility of KNO3 ____________ with the increases in temperature.
increases
decreases
remains constant
None of these
9.
10.
Cylindrical lens is used to correct
Myopia
Hypermetropia
Presbyopia
Astigmatism
11.
In spherical lenses, all distance are measured from
optic centre
principal focus
principal axis
centre of curvature
12.
Ultrasound waves compared to audible sound waves have.
Lower frequency and Shorter wavelength
Lower frequency and longer wavelength
higher frequency and longer wavelength
higher frequency and shorter wavelength
13.
The first period of the modern periodic table has ________ elements.
1
2
3
8
14.
Water from soil enters the root hairs due to___________
capillary Action
capillary Action
adhesion
osmosis
15.
The weight of a molecule of the compound C60H122 is:
1.4 x 10-21g
1.09 x 10-21g
5.025 x 1023g
16.023 x 1023g
16.
PNS is formed of _______pairs of cranial nerves in Rabbit
10
12
14
16
17.
What is the mass of 12.044 x 1023 number of O2 molecules?
8 g
16 g
32 g
64 g
18.
The gravitational force of earth acting on a body of mass 1 kg is ___________
8.9 N
9.8 N
980 N
1 N
19.
If resistance of a wire is r ohms and wire is stretched to double its length, then what is its resistance?
r
2r
4r
r/2
20.
A & B are two objects with masses 100 kg & 75 kg respectively, then _______
both will have same inertia
B will have more inertia
A will have more inertia
both will have less inertia
21.
An inexhaustible resources is
wind power
soil fertility
wild life
all of the above
22.
LH is secreted by
Adrenal gland
Thyroid gland
Anterior pituitary
Hypothalamus.
23.
Which nervous band connects the two cerebral hemispheres of brain?
thalamus
hypothalamus
corpus callosum
pons
24.
The wall of human heart is made of
Endocardium
Epicardium
Myocardium
All of the above
25.
Mammals are ______________ animals.
Cold blooded
Warm blooded
Poikilothermic
All the above
26.
27.
A 25% alcohol solution means
25 ml alcohol in 100 ml of water
25 ml alcohol in 25 ml of water
25 ml alcohol in 75 ml of water
75 ml alcohol in 25 ml of water
28.
Neon shows zero electron affinity due to _____.
stable arrangement of neutrons
stable configuration of electrons
reduced size
increased density
29.
Which is formed during anaerobic respiration
Carbohydrate
Ethyl alcohol
Acetyl CoA
Pyruvate
30.
Man-made radioactivity is also known as ___________.
Induced radioactivity
Spontaneous radioactivity
Artificial radioactivity
a & c
31.
The volume occupied by 4.4 g of CO2 at S.T.P
22.4 liter
2.24 liter
0.24 liter
0.1 liter
32.
In a myopic eye, the image of the object is formed
behind the retina
on the retina
in front of the retina
on the blind spot
33.
In which of the following sport the turning of effect of force used
swimming
tennis
cycling
hockey
1.
(a)
1st December
2.
(d)
both (a) and (c)
3.
(b)
Earth
4.
(a)
Meningitis
5.
(b)
Precipitation
6.
(b)
nuclear reactors
7.
(a)
8.
(a)
increases
9.
(c)
10.
(d)
Astigmatism
11.
(a)
optic centre
12.
(d)
higher frequency and shorter wavelength
13.
(b)
2
14.
(d)
osmosis
15.
(a)
1.4 x 10-21g
16.
(b)
12
17.
(d)
64 g
18.
(b)
9.8 N
19.
(c)
4r
20.
(c)
A will have more inertia
21.
(d)
all of the above
22.
(c)
Anterior pituitary
23.
(c)
corpus callosum
24.
(d)
All of the above
25.
(b)
Warm blooded
26.
(c)
27.
(c)
25 ml alcohol in 75 ml of water
28.
(b)
stable configuration of electrons
29.
(b)
Ethyl alcohol
30.
(d)
a & c
31.
(b)
2.24 liter
32.
(c)
in front of the retina
33.
(c)
cycling
10th Standard Syllabus & Materials
10th Standard
TN 10th Tamil கூட்டாஞ்சோறு - இலக்கணம் - தொகைநிலை தொடர்கள் Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil பண்பாடு - கவிதை பேழை (செய்யுள்) -முத்துக்குமாரசாமி பிள்ளைத்தமிழ் Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil உயிரின்ஓசை - இலக்கணம் - தொகாநிலை தொடர் Sample Question Papers Study Material - QB365 Set A
NEW10th Standard
TN 10th Tamil இயற்கை, சுற்றுசூழல், அறிவியல் - கவிதை பேழை (செய்யுள்) -மேகம் Sample Question Papers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
