19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following statements is correct regarding the behaviour of white phosphorus?
On boiling phosphorus with KOH solution, product formed is
White phosphorus is kept under
White phosphorus is more reactive than N₂ because
White phosphorus reacts with NaOH to give PH₃ and NaH₂PO₂. This reaction involves
Which of the following oxoacids of phosphorus is a reducing agent and a monobasic acid as well?
At present, HNO₃ is industrially prepared by the
Liquid N₂O₄ self-ionizes as
Which of the following reactions gives reasonably pure NO?
Phosphorus reacts with concentrated HNO₃ to produce
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 oxides of nitrogen is solid?
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⁺
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 a mixed anhydride of two acids?
Iodine reacts with concentrated HNO₃ to produce
Ammonia gas can be dried by
Ammonia, on reaction with excess of chlorine, gives :
N₂ is commercially prepared by
A solution of sodium in liquid ammonia is blue due to the presence of
Which of the following reactions is used in the preparation of N₂?
Gold reacts with aqua regia forming
Which of the following oxides is the most acidic?
An aqueous solution of ammonia consists of
Which of the following gases is the least reactive?