Excess of ammonia with sodium hypochlorite solution in the presence of glue or gelatine gives:

Phosphine may be produced by adding water to

On adding water to $BiCl_3$ solution in $HCl$,the compound produced is

Superphosphate of lime is

Which of the following is formed when aluminium oxide and carbon are strongly heated in dry chlorine gas?

The orange solid on heating gives a colourless gas and a green solid which can be reduced to metal by aluminium powder. The orange and the green solids are, respectively