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The hybridization of \(\mathrm{I}\) in \(\mathrm{IF}_{3}\) is (a) \(\mathrm{sp}^{3} \mathrm{~d}\) (b) \(\mathrm{sp}^{3}\) (c) \(\mathrm{sp}^{3} \mathrm{~d}^{2}\) (d) \(\mathrm{sp}^{3} \mathrm{~d}^{3}\)

What is the number of sigma and pi bonds present in a molecule of sulphuric acid? (a) \(6 \sigma, 2 \pi\) (b) \(6 \sigma, 0 \pi\) (c) \(2 \sigma, 4 \pi\) (d) \(2 \sigma, 2 \pi\)

The shape of IF \(_{7}\) molecule is (a) pentagonal bipyramidal (b) trigonal pyramidal (c) tetrahedral (d) square planar

The highest dipole moment is of (a) \(\mathrm{CF}_{4}\) (b) \(\mathrm{CH}_{3} \mathrm{OH}\) (c) \(\mathrm{CO}_{2}\) (d) \(\mathrm{CH}_{3} \mathrm{~F}\)

The most polar bond is (a) \(\mathrm{C}-\mathrm{F}\) (b) \(\mathrm{C}-\mathrm{O}\) (c) \(\mathrm{C}-\mathrm{Br}\) (d) \(\mathrm{C}-\mathrm{S}\)

Which one of the following is the correct set with reference to molecular formula, hybridization of central atom and shape of the molecule? (a) \(\mathrm{CO}_{2}, \mathrm{sp}^{2}\), bent (b) \(\mathrm{H}_{2} \mathrm{O}, \mathrm{sp}^{2}\), bent (c) \(\mathrm{BeCl}_{2}, \mathrm{sp}\), linear (d) \(\mathrm{H}_{2} \mathrm{O}, \mathrm{sp}^{3}\), linear

What is the hybridization state of the central atom in the conjugate base of \(\mathrm{NH}_{4}^{+}\)ion? (a) sp (b) \(\mathrm{sp}^{3}\) (c) \(\mathrm{sp}^{3}\) (d) \(\mathrm{dsp}^{2}\)

Which one of the following molecules contains both ionic and covalent bonds? (a) \(\mathrm{CH}_{2} \mathrm{Cl}_{2}\) (b) \(\mathrm{K}_{2} \mathrm{SO}_{4}\) (c) \(\mathrm{BeCl}_{2}\) (d) \(\mathrm{SO}_{2}\)

Which one of the following is a correct set with respect to molecule, hybridization and shape? (a) \(\mathrm{BeCl}_{2}, \mathrm{sp}^{2}\), linear (b) \(\mathrm{BeCl}_{2}, \mathrm{sp}^{2}\), triangular planar (c) \(\mathrm{BCl}_{3}, \mathrm{sp}^{2}\), triangular planar (d) \(\mathrm{BCl}_{3}, \mathrm{sp}^{3}\), tetrahedral

Which of the following shows isostructural species? (a) \(\mathrm{NH}_{4}^{+}\)and \(\mathrm{NH}_{2}^{-}\) (b) \(\mathrm{CH}_{3}^{-}\)and \(\mathrm{CH}_{3}^{+}\) (c) \(\mathrm{SO}_{4}^{2-}, \mathrm{PO}_{4}^{3-}\) and \(\left[\mathrm{BF}_{4}-\right]\) (d) \(\mathrm{NH}_{4}^{+}\)and \(\mathrm{NH}_{3}\)