19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Phosphorus reacts with concentrated HNO3 to produce
At present, HNO3 is industrially prepared by the
Which of the following reactions gives reasonably pure NO?
Liquid N2O4 self-ionizes as
Which of the following oxides of nitrogen is a mixed anhydride of two acids?
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+
FeSO4 is a very good absorber for NO. The number of unpaired electrons in the new compound formed by this process is
Which statement is wrong for NO ?
Which of the following oxides of nitrogen is solid?
In NO ion, the number of bond pairs and lone pair of electrons on nitrogen atom are
The bond order in the NO molecule is
A solution of sodium in liquid ammonia is blue due to the presence of
Ammonia, on reaction with excess of chlorine, gives :
Ammonia gas can be dried by
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…
Which of the following fertilizers on repeated application would increase the acidity of the soil?
The reaction between urea and nitrous acid produces
Which of the following compounds does not give N2 on heating?
Small quantities of very pure N2 is obtained by carefully warming
Which of the following reactions is used in the preparation of N2?
N2 is commercially prepared by
Which of the following forms strong p - p bonding
Which of the following gases is the least reactive?
An aqueous solution of ammonia consists of
Which of the following oxides is the most acidic?