States of Matter Test

Result

States of Matter Test - 1

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Weekly Quiz Competition

Question 1
4 / -1

Dipole-induced dipole interactions are present in which of the following pairs :

A
Cl₂ and CCl₄

B
HCl and He atoms

C
SiF₄ and He atoms

D
H₂O and alcohol
Question 2
4 / -1

The compressibility factor for a real gas at high pressure is

A

B
1

C

D
Question 3
4 / -1

The term that corrects for the attractive forces present in a real gas in the van der Waal's equation is

A
nb

B
n² a/V²

C
- ( n² a/V² )

D
- nb
Question 4
4 / -1

A gas deviates from ideal behaviour at a high pressure because its molecules

A
attract one another

B
show the Tyndal effect

C
have kinetic energy

D
are bound by covalent bonds
Question 5
4 / -1

Under which of the following conditions, van der Waals' gas approaches ideal behaviour?

A
Extremely low pressure

B
Low temperature

C
High pressure

D
Low product of pV
Question 6
4 / -1

The ratio of masses of oxygen and nitrogen of a particular gaseous mixture is 1 : 4. The ratio is number of their molecule is

A
1 : 4

B
7 : 32

C
1 : 8

D
3: 16

Solution
Question 7
4 / -1

Density of carbon monoxide is maximum at

A
2 atm and 600 K

B
0.5 atm and 273 K

C
6 atm and 1092 K

D
4 atm and 500 K

Solution
Question 8
4 / -1

The ratio of rates of diffusion of gases X and Y is 1 : 5 and that of Y and Z is 1 : 6. The ratio of rates of diffusion of Z and X is

A
1 : 30

B
1 : 6

C
30 : 1

D
6 : 1

Solution
Question 9
4 / -1

The rate of diffusion of methane at a given temperature is twice of a gas X . The molar mass of the gas X is

A
64

B
32

C
16

D
8

Solution
Question 10
4 / -1

A gas is heated through 1°C in a closed vessel and so the pressure increases by 0.4%. The initial temperature of the gas was

A
-23° C

B
+23° C

C
250°C

D
523°C

Solution