EASY
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Which of these are layers of atmosphere?

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Important Questions on States of Matter

MEDIUM
Chemistry>Physical Chemistry>States of Matter>The Gaseous State

Match the following columns.

Column I

(Occurrence of Water)

Column II

(Examples)
(i) Hydrated salt (a) Mist and fog
(ii) Solid state (b) CuSO4.5H2O
(iii) Liquid state (c) Ice, frost
(iv) Gaseous state (d) Well water, sea water

 

HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
With regard to the gaseous state of matter which of the following statements are correct?
MEDIUM
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
How is the pressure of a gas measured ?
HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State

Give suitable explanation for the following fact about gases.

Gases don’t settle at the bottom of a container.

HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State

Use the information and data given below to answer the question.

• Stronger intermolecular forces result in higher boiling point.

• Strength of London forces increases with the number of electrons in the molecule.

• Boiling point of HF, HCl, HBr and HI are 293 K, 189 K, 206 K and 238 K respectively.

Why is boiling point of hydrogen fluoride highest while that of hydrogen chloride lowest?
 

HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Which of the following represents largest pressure?
EASY
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Explain, why gases can be liquefied? 
EASY
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
A gas can be compressed to a fraction of its volume. The same volume of a gas can be spread all over a room. The reason for this is that
HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Physical properties of ice, water and steam are very different. What is the chemical composition of water in all three states?  
 
HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
What is the difference between a barometer and a manometer?
HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Would it be easier to drink water with a straw on the top of the Mount Everest or at the base? Explain.
HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
The behaviour of matter in different states is governed by various physical laws. According to you what are the factors that determine the state of matter?
 
EASY
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
List the main points of difference between a solid, a liquid and a gas.
MEDIUM
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Write the observable properties or variable of gases and explain it. 
EASY
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Which of the following does not express the properties of gases?
HARD
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
Equal moles of hydrogen and oxygen gas are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?
EASY
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
A gas can be compressed to a fraction of its volume. The same volume of a gas can be spread all over a room. The reason for this is that
EASY
Chemistry>Physical Chemistry>States of Matter>The Gaseous State

“When stating the volume of gas, the pressure and temperature should also be given.” Why?

MEDIUM
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
How are the following measured?
Atmospheric pressure
MEDIUM
Chemistry>Physical Chemistry>States of Matter>The Gaseous State
List the characteristic physical properties of the gases.