19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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⁺
Liquid N₂O₄ self-ionizes as
Which of the following reactions gives reasonably pure NO?
FeSO₄ is a very good absorber for NO. The number of unpaired electrons in the new compound formed by this process is
At room temperature, O₃ is absorbed by
A solution of sodium in liquid ammonia is blue due to the presence of
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?
The gases absorbed by alkaline pyrogallol and oil of cinnamon are respectively
The reaction between urea and nitrous acid produces
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 compounds does not give N₂ on heating?
Ammonia gas can be dried by
Which of the following forms strong p - p bonding
An aqueous solution of ammonia consists of
Which of the following gases is the least reactive?
N₂ is commercially prepared by
Which of the following is the increasing order of enthalpy of vaporization?
Among the following compounds of nitrogen and hydrogen, the most acidic compound is
Which one of the following compounds is most explosive?
Which of the following oxides is the most acidic?
Which of the following reactions is used in the preparation of N₂?
Which of the following halides of nitrogen is stable?
Small quantities of very pure N₂ is obtained by carefully warming