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

Hinsberg's reagent is ______.

In Clemmensen's reaction, ketone gives ____________.

The enthalpy change for two reactions are given by the equations

\[\ce{2Cr_{(s)} + 1.5 O2_{(g)} -> Cr2O3_{(s)}}\];

∆H₁ = −1130 kJ ............(i)

\[\ce{C_{(s)} + 0.5 O2_{(g)} -> CO_{(g)}}\];

∆H₂ = −110 kJ .........(ii)

What is the enthalpy change, in kJ, for the following reaction?

\[\ce{3C_{(s)} + Cr2O3_{(s)} -> 2Cr_{(s)} + 3CO_{(g)}}\]

Which of the following salts do not undergo hydrolysis?

i. CH₃COONa

ii. CuSO₄

iii. NaCl

iv. NH₄NO₃

v. K₂SO₄

Boron has two isotopes ¹⁰B and ¹¹B with atomic masses 10 and 11, respectively. If its average atomic mass is 10.81, the abundance of ¹⁰B is ____________.

Acetone on Clemmensen reduction gives ____________.

Given the bond energies N ≡ N, H – H and N – H bonds are 945, 436 and 391 kJ/mol respectively. The enthalpy of the reaction;

\[\ce{N2_{(g)} + 3H2_{(g)} -> 2NH3_{(g)}}\]

\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]

Which of the following is CORRECT about polymer 'X'?

In which of the following reactions does the heat change represent the heat of formation of water?

In which of the following reactions, ∆H is greater than ∆U?

Compounds of general formula, are called ____________.

\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR'}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{H}\phantom{....}\ce{OR'}\phantom{} \end{array}\]

The compound which does NOT undergo haloform reaction is ____________.

Find the CORRECT match.

____________ is used as a primary reference electrode to determine the standard potentials of other electrodes.

Which of the following will give positive iodoform test?

Following reaction is an example of ____________.

\[\ce{Benzaldehyde ->[Nitration] {m}-Nitrobenzaldehyde}\]

Which of the following hydride does not obey law of constant proportion?

Which of the following polymers is obtained from chloroprene?

Work done when 2 moles of an ideal gas is compressed from a volume of 5 m³ to 1 dm³ at 300 K, under a pressure of 100 kPa is ____________.

Which among the following compounds is obtained when diethyl amine reacts with benzene sulphonyl chloride?