Chemistry Question Bank

The members of group 14 form tetrahalides of the type MX4. Which of the following halides cannot be readily hydrolysed by water ?

Group 13 elements show +1 and +3 oxidation states. Relative stability of +3 oxidation state may be given as (a) Tl Ga Al B In + + + + + > > > > (b) B Al Ga In Tl + + + + + > > > > (c) Al Ga Tl In B + + + + + > > > > (…

Phosphorus reacts with concentrated HNO₃ to produce

Iodine reacts with concentrated HNO₃ to produce

Liquid N₂O₄ self-ionizes as

Which of the following reactions gives reasonably pure NO?

Which of the following oxides of nitrogen is a mixed anhydride of two acids?

At present, HNO₃ is industrially prepared by the

Gold reacts with aqua regia forming

In NO ion, the number of bond pairs and lone pair of electrons on nitrogen atom are

A solution of sodium in liquid ammonia is blue due to the presence of

Which of the following oxides of nitrogen is solid?

Ammonia gas can be dried by

Ammonia, on reaction with excess of chlorine, gives :

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 compounds does not give N₂ on heating?

Small quantities of very pure N₂ is obtained by carefully warming

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 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⁺

Platinum reacts with aqua regia to produce chloroplatinic acid represented by the formula

An aqueous solution of ammonia consists of

Which of the following oxides is the most acidic?

Which of the following gases is the least reactive?

Which of the following is the increasing order of enthalpy of vaporization?