Question

Chapter- Matter in our surroundings

Multiple choice questions.
1. S.I unit of temperature is
a) Celsius
b) Fahrenheit
c) Pascal
d) Kelvin
2. ………………… gas is used as a domestic household fuel.
a) CNG
b) Liquid oxygen
c) LPG
d) Dry ice
3. Which institute in India is credited for the development of vaccine COVISHIELD?
a) SERUM INSTITUTE OF INDIA LOCATED AT POONA
b) ISRO LOCATED AT BENGALURU.
c) DRDO LOCATED AT DELHI.
d) TERI LOCATED AT DELHI. (1+1+1=3)
FILL IN THE BLANKS-
1) Particles of matter are continuously moving as they possess ………………….. energy.
2) The rate of diffusion of liquids is ……………… than that of solids.
3) Gases exert …………… on the walls of the container. (1+1+1=3)
ASSERTION-REASON
Read the ‘Assertion’ and ‘Reason’ statements carefully and choose the right option
I. Assertion: gases can be transported using cylinders
Reason: gases are compressible

a) Assertion and reason are true, and reason is the correct explanation of assertion.
b) Assertion and reason are true, but reason is not the correct explanation of assertion.
c) Assertion is true and reason is false
d) Assertion is false and reason is true.


II. Assertion: presence of dissolved oxygen makes the survival of living organisms possible.
Reason: particles in gases move randomly and occupy the whole volume available to them.
a) Assertion and reason are true, and reason is the correct explanation of assertion.
b) Assertion and reason are true, but reason is not the correct explanation of assertion.
c) Assertion is true, and reason is false
d) Assertion is false, and reason is true. (1+1=2)

Answer 1

Answer:

Multiple choice questions

1. Kelvin

2.LPG