WBJEE 2019 Chemistry Solved Paper

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Question : 38 of 40

Marks: +1, -0

Identify the correct statement(s):

The oxidation number of Cr in CrO5 is +6.
ΔH > ΔU for the reaction N2O4(g)→2NO2(g). Provided both gases behave idelly.
pH of 0.1N H2SO4 is less than that of 0.1 N HCl at 25ºC
(
RT
F
) = 0.0591 volt at 25ºC.

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