1. A person heats water in a beaker, the warm water :
a) moves towards side
b) sinks downward
c) rises upwards
d) no effect
2. If volume of a liquid is 6000 cm^3 and mass is 3000g. Density of the liquid will be :
a) 0.5 g/cm^3
b) 1/2 g/cm^3
c) both (a) and (b)
d) none of these
3. A nail sinks in water because its density is ____than 1 g/cm^3 of water.
a) less
b) more
c) equal
d) none of these
4. According to Greeks, all materials are made of ____basic building blocks.
a) five
b) four
c) three
d) none of these
5. ____have neither definite shape nor definite volume.
a) solid
b) liquid
c) both (a) and (b)
d) none of these
6. The molecules of a liquid in a vessel are not in ____position.
a) stationary
b) motion
c) both (a) and (b)
d) none of these
7. 1 gram of ice at 0 degree C, extracts out ____of heat energy from the surrounding on melting.
a) 236J
b) 326J
c) 336J
d) 33600J
8. The boiling point of water and condensation point of steam is ____and ____respectively.
a) 100 degree C, 0 degree C
b) 100 degree C, 100 degree C
c) 100 degree C, 110 degree C
d) 0 degree C, 100 degree C
9. The formation of a curved surface on the exposed surface of a liquid is contained in a narrow tube is called :
a) meniscus
b) concave meniscus
c) convex menicus
d) surface tension
10. The substance having highest specific latent heat of vaporisation is :
a) alcohol
b) mercury
c) steam
d) none of these
11. Which substance have the highest specific latent heat of fusion :
a) wax
b) ice
c) gold
d) none of these
12. The intermolecular forces are maximum in :
a) iron
b) wood
c) plastic
d) rubber
13. 1 g/cm^3 is equal to :
a) 1 kg/m^3
b) 1000000 kg/m^3
c) 1000 kg/m^3
d) 100 kg/m^3
14. The substance with the density less than 1 g/cm^3 of water will ____ in water.
a) sink
b) float
c) move
d) none of these
15. Volume of a metal cube is 400 cm^3. If the density of metal cube is 15.0 g/cm^3, the mass of metal cube in kg :
a) 6 kg
b) 0.06 kg
c) 3 kg
d) 60 kg
16. The density of a substance is 19.6 g/cm^3. Its density in S.I. system is :
a) 1960 kg/m^3
b) 196000 kg/m^3
c) 19600 kg/m^3
d) 196 kg/m^3
17. The intermolecular spaces in gases is ____times more than liquids.
a) 10000
b) 1000
c) 100
d) 10
18. During the change of state of a substance its temperature will ____.
a) vary on room temperature
b) remains constant on room temp.
c) decreases on room temperature
d) none of these
19. A density bottle weighs 40.10 g when empty, 70.10 g when filled with a liquid and 80.10 g when filled with water. The volume of bottle is ____and density of the liquid is ____.
a) 40.0 cm^3, 0.75 g/cm^3
b) 40 cm^3, 1 g/cm^3
c) 40.0 cm^3, 0.80 g/cm^3
d) 40.0 cm^3, 0.65 g/cm^3
please give me correct answer so urgent
Answers
Answered by
0
there are so many questions l am confuced
Explanation:
sorry sorry
Answered by
2
Answer:
1. c
2.c
3.b
4.d
5.d
6.a
7.idk
8.a
9.d
10.c
11.b
12.a
13.c
14.b
15.d
16.c
17.idk
18.b
19.idk.
Explanation:
sorry bro I am unable to answer few questions.
but I try to answer as many as I knew. .
stay home stay safe .
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