Book Store

Download books and chapters from book store.
Currently only available for.
CBSE

NEET Chemistry : States of Matter

Multiple Choice Questions

51.

A bottle of cold drink contains 200 ml liquid in which CO₂ is 0.1 molar .Suppose CO₂ behaves like an ideal gas , the volume of the dissolved CO₂ at STP is :

0.224 L
22.4 L
0.448 L
44.8 L

52.

Two flasks X and Y have capacity 1L and 2L respectively and each of them contains 1 mole of a gas. The temperatures of the flasks are so adjusted that average speed of molecules in X is twice as those in Y. The pressure in flask X would be

same as that in Y
half of that in Y
twice of that in Y
8 times ofthat in Y

53.

Assertion : At critical point the densities of substance in gaseous and liquid states are same.

Reason : Critical temperature is the temperature at which the real gas exhibit ideal behaviour for considerable range of pressure.

If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

54.

The variation of volume V, with temperature T, keeping pressure constant is called the coefficient of thermal expansion ( $α$ ) of a gas, i.e., $α$ = $\frac{1}{V} {(\frac{dV}{dT})}_{P}$ . For an ideal gas $α$ is equal to

T
$\frac{1}{T}$
P
$\frac{1}{P}$

55.

In the van der Waals equation, 'a' signifies

intermolecular attraction
intramolecular attraction
attraction between molecules and wall of container
volume of molecules

56.

A diatomic gas at pressure P, compressed adiabatically to half of its volume, what is the final pressure?

(2)^1.4P
P/(2)^1.4
(2)^5/3P
P/(2)^5/3

57.

Arrange the following gases in order of their critical temperature.
NH₃, H₂O, CO₂, O₂

NH₃> H₂O > CO₂> O₂
O₂> CO₂> H₂O > NH₃
H₂O > NH₃> CO₂> O₂
CO₂>O₂>H₂O > NH₃

58.

Equation of Boyle's law is :

$\frac{dP}{P}$ = - $\frac{dV}{V}$
$\frac{dP}{P}$ = + $\frac{dV}{V}$
$\frac{d^{2} P}{P}$ = - $\frac{dV}{dT}$
$\frac{d^{2} P}{P}$ = + $\frac{d^{2} V}{dT}$

59.

For a first order gas phase reaction-

A_(g) $\to$ 2B_(g)+ C_(g)

P₀ be initial pressure of A and P, the total pressure at time 't'. Integrated rate equation is

$\frac{2.303}{t} \log (\frac{P_{0}}{P_{0} - P_{t}})$
$\frac{2.303}{t} \log (\frac{2 P_{0}}{3 P_{0} - P_{t}})$
$\frac{2.303}{t} \log (\frac{P_{0}}{2 P_{0} - P_{t}})$
$\frac{2.303}{t} \log (\frac{2 P_{0}}{2 P_{0} - P_{t}})$

60.

Assertion : In a pressure cooker, the water is brought to boil. The cooker is then removed from the stove. Now on removing the lid of pressure cooker, the water starts boiling again.

Reason: The impurities in water bring down its boiling point.

If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

Do a good deed today
Refer a friend to Zigya

Book Store

Subject

NEET Chemistry : States of Matter

Multiple Choice Questions