NEET Chemistry The p-Block Elements (XII) Questions Solved


HCN+H2OX+NH3

XY+H2O

(Unbalanced equations)

[Y] May be prepared by which one of the following methods?

[A] By dehydration of malonci acid with P2O5

[B] By thermal decomposition of carbon sub-oxide in air.

[C] By heating potassium hyxacyaanoferrate (II) with conic H2SO4

[D] By the action of conc. HNO3 on charcoal  

(C) HCN+2H2OHCOOHX+2NH3; HCOOH COY+H2O 

       (C) Only K4FeCN6+6H2SO4conc. H2SO4 according to the following reaction.

Difficulty Level:

  • 25%
  • 25%
  • 31%
  • 22%
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