CSS OPTIONAL SUBJECTS MCQs

Here, you may find CSS Optional Subjects MCQs. If you want to prepare MCQs of optional subjects, CSS MCQs platform is here to serve you while preparing your MCQs portion of your CSS Exam. Please practice these CSS Optional Subjects MCQs on a daily basis.

The solid particles only posses

A. Translational motion
B. Vibrational motion
C. Rotational motion
D. All of the above motions

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Correct Answer: B. Vibrational motion
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For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature?

A. 1/2dm3
B. 1/3dm3
C. 1/4dm3
D. 2/3dm3

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Correct Answer: B. 1/3dm3
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If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear

A. A straight line parallel to the x-axis
B. A straight line parallel to the y-axis
C. Straight line
D. Curve

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Correct Answer: C. Straight line
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Which one is the right value for R?

A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 Nm2k-1mol-1

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Correct Answer: A. 0.0821 atm dm3k-1mol-
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Which one is not the partial pressure of oxygen in the lungs?

A. 0.1526 atm
B. 116 mm of Hg
C. 116 torr
D. 1 atm

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Correct Answer: D. 1 atm
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The spreading of fragrance or scent in the air is due to

A. Diffusion
B. Effusion
C. Attraction with air
D. Low density

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Correct Answer: A. Diffusion
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