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1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
Out of Syllabus

Identify the pair of gases that have equal rates of diffusion

A
CO, NO
B
N$$_2$$O, CO
C
N$$_2$$O, CO$$_2$$
D
CO$$_2$$, NO$$_2$$
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
Out of Syllabus

The melting of ice

A
is the phase transformation
B
takes place at constant pressure and temperature
C
takes place at 373 K
D
Both (a) and (b)
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
Out of Syllabus

The density of a gas A is thrice that of a gas B at the same temperature. The molecular weight of gas B is twice that of A. What will be the ratio of pressure acting on B and A?

A
$$\frac{1}{4}$$
B
$$\frac{7}{8}$$
C
$$\frac{2}{5}$$
D
$$\frac{1}{6}$$
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0
Out of Syllabus

Gram molecular volume of oxygen at STP is

A
11200 cm$$^{3}$$
B
22400 cm$$^{3}$$
C
5600 cm$$^{3}$$
D
3200 cm$$^{3}$$
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