19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
White phosphorus reacts with NaOH to give PH₃ and NaH₂PO₂. This reaction involves
White phosphorus is more reactive than N₂ because
PCl₅ on hydrolysis gives
Which of the following compounds consists of a P–P linkage?
Which of the following statements is correct regarding the behaviour of white phosphorus?
Phosphorus reacts with concentrated HNO₃ to produce
Iodine reacts with concentrated HNO₃ to produce
At present, HNO₃ is industrially prepared by the
Gold reacts with aqua regia forming
Which of the following oxides of nitrogen is a mixed anhydride of two acids?
Liquid N₂O₄ self-ionizes as
Platinum reacts with aqua regia to produce chloroplatinic acid represented by the formula
Which of the following reactions gives reasonably pure 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 solid?
A solution of sodium in liquid ammonia is blue due to the presence of
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 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⁺
White phosphorus is kept under
Ammonia, on reaction with excess of chlorine, gives :
The number of P–O–P bonds in the structure of phosphorus pentoxide and phosphorus trioxide are respectively (2005)
An aqueous solution of ammonia consists of
Which of the following gases is the least reactive?
Which of the following oxides is the most acidic?
Which of the following forms strong p - p bonding