IAT_NEST Chemistry MCQ Practice

Practice Questions

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Q1SingleMarks: 4.00Negative: -1.00

Which carbonyl compound reacts fastest with propylamine to form an imine?

A. p-MethoxybenzaldehydeB. p-NitrobenzaldehydeC. p-CyanobenzaldehydeD. p-Nitroacetophenone

Q2SingleMarks: 4.00Negative: -1.00

A keto ester is protected with ethylene glycol/HCl and then treated with LiAlH4/H2O. Identify final product Y.

A. Protected ketone with terminal aldehydeB. Protected ketone with terminal primary alcoholC. Unprotected ketone with terminal primary alcoholD. Diol with secondary and primary OH

Q3SingleMarks: 4.00Negative: -1.00

Which complex is expected to be coloured?

A. [Al(H2O)6]3+B. [Zn(H2O)6]2+C. [Ni(H2O)6]2+D. [Mg(H2O)6]2+

Q4SingleMarks: 4.00Negative: -1.00

M has [Ar]4s2 3d6. Which complex gives the displayed five-unpaired-electron distribution?

A. [M(CN)6]4-B. [MF6]3-C. [MF6]4-D. [M(CN)6]3-

Q5SingleMarks: 4.00Negative: -1.00

If a proton carried twice an electron’s charge magnitude, what P, N and E would neutral 23Na contain?

A. P=12, N=11, E=23B. P=11, N=12, E=23C. P=11, N=12, E=11D. P=11, N=12, E=22

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