NEET Chemistry The s-Block Elements Questions Solved


Calcium imide on hydrolysis gives gas (B) which on oxidation by bleaching powder gives gas (C). Gas (C) on reaction with magnesium give compound (D) which on hydrolysis gives again gas (B)> Identify (B), (C) and (D).

(a) NH3, N2, Mg3N2                   (b) N2, NH3, MgNH

(c) N2, N2O5, MgNO32              (d)NH3 ,NO2, MgNO22 

(a) CaNH+2H2O CaOH2+NH3gB

     2NH3B+3CaOCl3N2gC+3CaCl2+3H2O

     N2g(C)+3MgMg3N2(D)

     Mg2N2D+ 6H2O3MgOH2+2NH3B

Difficulty Level:

  • 49%
  • 23%
  • 21%
  • 9%
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