MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions

The H-H bond energy is 430 kJ mol^-1 and Cl-Cl bond energy is 240 kJ mol^-1. Δ_fH for HCl is - 90 kJ, then H-Cl bond energy is ______.

The equilibrium constant for a reaction is 10, value of ΔG° at 300 K is (R = 8 × 10^-3 kJ)

Identify the compound that gives 2, 5-dimethylhexane by reacting with sodium metal in presence of dry ether.

Identify the product of the following reaction.

\[\ce{CH3 - Br + C2H5COOAg ->[\Delta] ?}\]

For a reaction ΔH = - 30kJ and ΔS = - 45 JK^-1, at what temperature reaction changes from spontaneous to non-spontaneous?

For which of the following reaction, ΔH = ΔU?

When will be change in Gibb's free energy always negative?

Which of the following metals does NOT displace zinc from it's solution?

Which element among the following is used as reducing agent for reduction of remaining three elements from their oxides?

Which metal from following has highest tendency to undergo oxidation?

Which gas among the following contains a maximum number of molecules at STP?

(Molar masses in g mol^-1 : CO₂ = 44, Ar = 39.9, CH₄ = 16, O₂ = 32)

Relation between ΔH and ΔU for the reaction, \[\ce{2SO_{3(g)} -> 2SO_{2(g)} + O_{2(g)}}\] is _______.

Identify the unit used for measurement of energy according to international system of units?

Which among the following lanthanoids has smallest atomic size?

At high concentration of soap in water, soap behaves as ______.

Which of the following compound can be best prepared by the Wurtz reaction?

The one that is NOT suitable for the removal of permanent hardness of water is ______.

A reaction is spontaneous at low temperatures but non-spontaneous at high temperatures. Which of the following is true for the reaction?

The molecular formula of Wilkinson's catalyst used in the hydrogenation of alkenes is ______.

The criterion for a spontaneous process is ______.