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Answers
Answer:
1. If at constant pressure the absolute temperature of a given mass of a gas is halved its
volume becomes :
(a) Double (b) half (c) little more than half (d) little less than halfWhich of the following ions is expected to have maximum hydration energy?
(a) Be2+
(b) Mg
2+
(c) Ca2+
(d) Sr2+ The reducing power of a metal depends on various factors. Suggest the factor which
makes Li, the strongest reducing agent in aqueous solution.
(a) Sublimation enthalpy (b) Ionisation enthalpy
(c) Hydration enthalpy (d) Electron-gain enthalpyWhy do Beryllium and Magnesium not impart characteristic colour to the flame in the
flame test?Expansion of a gas in vacuum is called free expansion. Calculate the work done and
change in internal energy when 1 mol of an ideal gas expands isothermally from 1L to
5 L into vacuum. What was Behrman doing on the last night?