Chemistry Question Bank

Gold reacts with aqua regia forming

Which of the following statements is correct regarding the behaviour of white phosphorus?

Which of the following reactions gives reasonably pure NO?

Liquid N₂O₄ self-ionizes as

At present, HNO₃ is industrially prepared by the

Which of the following oxides of nitrogen is a mixed anhydride of two acids?

Phosphorus reacts with concentrated HNO₃ to produce

The percentage of p-character in the orbitals forming P–P bonds in P₄ is:

In NO ion, the number of bond pairs and lone pair of electrons on nitrogen atom are

A solution of sodium in liquid ammonia is blue due to the presence of

Which of the following oxides of nitrogen is solid?

Ammonia gas can be dried by

Ammonia, on reaction with excess of chlorine, gives :

FeSO₄ is a very good absorber for NO. The number of unpaired electrons in the new compound formed by this process is

Which of the following forms strong p - p bonding

Which of the following gases is the least reactive?

N₂ is commercially prepared by

Which of the following reactions is used in the preparation of N₂?

Which of the following complexes is responsible for the brown colour of the ring formed in the ring test for the nitrates? (a)[Fe(CN)₅NO]3+ (b)[Fe(H₂O)₄NO]2+NO⁺

The reaction of P₄ with X leads selectively to P₄O₆. The X is:

Which one of the following compounds is most explosive?

Which of the following is the increasing order of enthalpy of vaporization?

The tendency of nitrogen halides to act as Lewis bases decreases in the order

Among the following compounds of nitrogen and hydrogen, the most acidic compound is

Which of the following halides of nitrogen is stable?