19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The true statement for the acids of phosphorus, H₃PO₂, H₃PO₃ and H₃PO₄ is
Solid PCl₅ exists as
Which of the following oxoacids of phosphorus is a reducing agent and a monobasic acid as well?
In ozone, the central oxygen atom uses
White phosphorus reacts with concentrated HNO₃ to give
The reaction of P₄ with X leads selectively to P₄O₆. The X is:
On boiling phosphorus with KOH solution, product formed is
The percentage of p-character in the orbitals forming P–P bonds in P₄ is:
White phosphorus reacts with NaOH to give PH₃ and NaH₂PO₂. This reaction involves
White phosphorus is kept under
White phosphorus is more reactive than N₂ because
PCl₅ on hydrolysis gives
Which of the following statements is correct regarding the behaviour of white phosphorus?
Ammonia, on reaction with excess of chlorine, gives :
A solution of sodium in liquid ammonia is blue due to the presence of
Ammonia gas can be dried by
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?
PH₃ and NH₃ on separate reaction with bleaching powder produce respectively
Mg (NH₄)PO₄ and Na(NH₄) HPO₄ are heated separately. Which of the following statements is/are completely incorrect regarding the product obtained in the above process? (I) Same gas is evolved (II) Same type of phosphat…
Ozone is prepared by the action of silent electric discharge upon oxygen in an apparatus called ozonizer. The reaction
Which of the following forms strong p - p bonding
N₂ is commercially prepared by
Which of the following gases is the least reactive?
Which of the following reactions is used in the preparation of N₂?