a) increases b) decreases c) remains same d) is reduced to zero Answer: b Explanation: Surface tension ...

a) a sphere has maximum surface area b) a sphere has minimum surface area c) sphere is symmetrical in ...

a) rise of liquid in a capillary tube b) spherical shape of liquid drops c) upward movement of water ...

a) \[C_{2}H_{5}OH\left(l\right)\] b) \[NH_{3}\left(l\right)\] c) \[HF\left(l\right)\] d) \[H_{2}O\left(l\right)\] Answer: b Explanation: The strength of H-bonding is in the order ...

a) atmospheric pressure is low b) temperature is low c) atmospheric pressure is high d) None of these Answer: ...

a) Avogadro Number =\[6.02 ×10^{21}\] b) The relationship between average velocity \[\left(\overline{V}\right)\] and root mean square velocity (u) ...

The mean free path ( \[\lambda\] ) of a gas sample is given by a) \[\lambda=\sqrt{2\pi\sigma^{2}N}\] b) \[\lambda=\frac{1}{\sqrt{2}.\pi\sigma^{2}N}\]

a) \[N_{2}\] b) \[O_{2}\] c) \[H_{2}\] d) \[CI_{2}\] Answer: c Explanation: Mean free path \[\propto \frac{1}{(Radius)^{2}}\] ...

a) Inversion temperature b) Critical temperature c) Absolute temperature d) Below 0ºC Answer: a Explanation: At exact inversion temperature ...

The inversion temperature \[\left(T_{i}\right)\] for a gas is given by a) a / Rb b) 2a / Rb