The Strongest Reducing Agent Amongst The Following Is

The dipole moment H₂O₂ is move than that of H₂O but H₂O₂ is not a good solvent because:

Phosgene can be obtained when:

The gas produced when ammonium bisulphide is added to an aqueous solution of aluminium sulfate is

NaNO₂ gives coloured fumes on treatment with dilute acids. The colour of fumes is

When NaNO₃ is heated with (NH₄)₂SO₄ a colourless gas & a residue is obtained. The colour of residue is

Which of the following is correct order of bond strength?

Of the following acids of sulphur which one has more than one oxidation state of sulphur atom?

Of the following which compound is most unstable?

An aqueous solution of a gas shows following reactions:  

(i) It turns red litmus blue

(ii) When added in excess to a copper sulphate solution a deep blue colour is obtained.

(iii) On addition to ferric chloride solution a brownish precipitate soluble in HNO₃ is obtained.       

Identify the gas.

Ammonium dichromate on heating gives