19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Platinum reacts with aqua regia to produce chloroplatinic acid represented by the formula
Iodine reacts with concentrated HNO₃ to produce
White phosphorus is kept under
At present, HNO₃ is industrially prepared by the
White phosphorus is more reactive than N₂ because
White phosphorus reacts with concentrated HNO₃ to give
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 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⁺
Which of the following oxides of nitrogen is solid?
Which of the following oxides of nitrogen is a mixed anhydride of two acids?
Ammonia, on reaction with excess of chlorine, gives :
A solution of sodium in liquid ammonia is blue due to the presence of
Liquid N₂O₄ self-ionizes as
In NO ion, the number of bond pairs and lone pair of electrons on nitrogen atom are
Which of the following compounds does not give N₂ on heating?
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…
Ammonia gas can be dried by
Which of the following reactions gives reasonably pure NO?
Syrupy H₃PO₄ is viscous due to
The true statement for the acids of phosphorus, H₃PO₂, H₃PO₃ and H₃PO₄ is
Which of the following oxides is the most acidic?
An aqueous solution of ammonia consists of
Among the following compounds of nitrogen and hydrogen, the most acidic compound is