Gases(Chemistry ) Questions and answers for exam Preparation

Question 1. To prove charle's law temperature is taken in

high temperature
Fahrenheit scale
Kelvin scale
centigrade scale

Explanation:-

Answer: Option C. -> Kelvin scale
Answer: (c).Kelvin scale

Question 2. Joule Thomson effect describes gases'

contraction
sudden expansion
expansion
relaxion

Explanation:-

Answer: Option B. -> sudden expansion
Answer: (b).sudden expansion

Question 3. R is known as

molar gas constant
volume constant
pressure constant
temperature constant

Explanation:-

Answer: Option A. -> molar gas constant
Answer: (a).molar gas constant

Question 4. In deducing Graham's law of diffusion constant is

under root of 3P
under root of 4V
under root of 6P
under root of 4P

Explanation:-

Answer: Option A. -> under root of 3P
Answer: (a).under root of 3P

Question 5. Boyle's law is used only for

non ideal gases
light gases
ideal gases
heavy gases

Explanation:-

Answer: Option C. -> ideal gases
Answer: (c).ideal gases

Question 6. Gas which is diffused into blood during diving is

hydrogen
helium
nitrogen
oxygen

Explanation:-

Answer: Option C. -> nitrogen
Answer: (c).nitrogen

Question 7. Ionization of gas can be used to produce

plasma
solid
liquid
gas

Explanation:-

Answer: Option A. -> plasma
Answer: (a).plasma

Question 8. Partial pressure of oxygen reported in air is

159 torr
169 torr
170 torr
179 torr

Explanation:-

Answer: Option A. -> 159 torr
Answer: (a).159 torr

Question 9. Gas which shows marked deviation from ideal gas behaviour according to graph is

helium
sulphur
iodine
carbon dioxide

Explanation:-

Answer: Option D. -> carbon dioxide
Answer: (d).carbon dioxide

Question 10. Gas having low value of 'a' is

chlorine
sulphurdioxide
ammonia
hydrogen bonding

Explanation:-

Answer: Option D. -> hydrogen bonding
Answer: (d).hydrogen bonding