Question

 

An inorganic compound (A) gave the following reactions

(i) The compound on heating gave a residue and a gaseous mixture of NO2and O2.

(ii) The aqueous solution of (A) gave a white precipitate with sodium chloride solution. The precipitate dissolves in NH4OH. The compound (A) is

Solution

Correct option is

AgNO3

 

Since, the compound on heating gives a mixture of NO2 and O2, it must be a nitrate of a metal which is less reactive than Hg. (Ag is less reactive than Hg but Ba and Pb are more reactive than Hg). Moreover, the aqueous solution of the compound gives a white precipitate which is soluble in NH4OH. Thus, it is confirmed that the compound A is AgNO.

          The reactions are as follows

                           

                 

              

SIMILAR QUESTIONS

Q1

Hg­2Cl2 ionises as ……... and cation has ……… unpaired electron (s).

Q2

Transition metals form alloys easily. The reason for this is

Q3

An inorganic compound on strong heating gave a blackish brown powder and two oxides of sulphur. The powder was dissolved in HCl when a yellow solution was obtained which gave a blood red coloured solution with thiocyanide ions. The inorganic compound may be

Q4

The species that undergoes disproprotionation in an alkaline medium are

Q5

In industrial smog, Cu corrodes to

Q6

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Q7

Silver nitrate produces a black strain on skin due to

Q8

A metal, M which is not affected by strong acids and strong bases but dissolves in aqua-regia forms MCl3 which is used for toning in photography. The metal M is

Q9

Transition elements exhibits variable valencies because they release electrons from the following orbits

Q10

The transition elements are more metallic than the representative elements because they have