Chemistry Question Bank

Which of the following compounds is known as inor- ganic benzene?

NaBH₄ + I₂ ® X + Y + Z BF₃ + NaH 450 K ¾¾¾® X + P BF₃ + LiAlH₄ ® X + Q + R X, Y, Z, P, Q and R in the reactions are X Y Z P Q R (a) Na₄B₄O₇ NaI HI HF LiF AlF₃ (b) B₂H₆ NaI H₂ NaF LiF AlF₃ (c) B₂H₆ BH₃ NaI B₃N₃H₆ Al₂F₆…

Graphite is soft while diamond is hard because

Boron cannot form which one of the following anions? (a) BF⁻ (b) BH⁻

Na B O X H BO . + ® What is X in the reaction ?

Which of the following reactions gives reasonably pure NO?

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

Liquid N₂O₄ self-ionizes as

At present, HNO₃ is industrially prepared by the

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

Which of the following oxides of nitrogen is solid?

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

Phosphorus reacts with concentrated HNO₃ to produce

Iodine reacts with concentrated HNO₃ to produce

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⁺

Which of the following forms strong p - p bonding

N₂ is commercially prepared by

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

Which of the following gases is the least reactive?

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

Which of the following oxides is the most acidic?

An aqueous solution of ammonia consists of

Ammonia gas can be dried by

Which of the following halides of nitrogen is stable?

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