Chemical Bonding and Molecular Structure

[Cu(NH₃)₄]²⁺ shows the following hybridization

• dsp²

• sp³d

• dsp³

• sp³

What is the geometry of molecule of bromine penta fluoride?

• Square planar

• Trigonal bipyramidal

• Squre pyramidal

• Octahedral

Bond order of which among the following molecules is zero?

• F₂

• O₂

• Be₂

• Li₂

Select a ferromagnetic material from the following.

• Dioxygen

• Chromium (IV) oxide

• Benzene

• Dihydrogen monoxide

Which element among the following does form p$\mathrm{\pi }$ - p$\mathrm{\pi }$ multiple bonds?

• Arsenic

• Nitrogen

• Phosphorus

• Antimony

The colour and magnetic nature of manganate ion (MnO${}_4^{2-}$) is

• green, paramagnetic

• purple, diamagnetic

• green, diamagnetic

• purple, paramagnetic

What is the hybridisation of carbon atoms in fullerene?

• sp³

• sp

• sp²

• dsp³

Hybridisation of carbon is CH${}_3^{-}$

• sp²

• sp³

• sp³d

• sp³d²

The common features among CO, CN^- and NO${}_2^{+}$ are

• Bond order three and isoelectronic.

• Bond order three and weak field ligands.

• Bond order two and $\mathrm{\pi }$-acceptors.

• Bond order three and $\mathrm{\pi }$-donors.

Which one of the following molecules has the least dipole moment?

• H₂O

• BeF₂

• NH₃

• NF₃