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Question

Lime stone is an ore of Calcium. On decomposition gives an oxide (A)
and CO2 gas. ‘A’ is reduced by Coke to give ‘B’ and Volatile gas.
B+N2CaCl2−−−1200CNitrolim
Nitrolim is a fertilizer.
The type of bonds present in compound (B) are:
  1. Ionic, Covalent & dative
  2. Ionic only
  3. Dative bond
  4. Both Ionic & Covalent


Solution

The correct option is D Both Ionic & Covalent
Lime stone is an ore of Calcium. On decomposition gives an oxide (A)
and CO2 gas. ‘A’ is reduced by Coke to give ‘B’ and Volatile gas.
B+N2CaCl2−−−1200CNitrolim
Nitrolim is a fertilizer.
‘B’ is CaC2

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