NEET Chemistry The s-Block Elements Questions Solved

A compound (A) is used in preparation of washing soda to recover ammonia in Solvay's process. When CO2 is bubbled through an aqueous solution of (A), the solution turns milky.It is used in white washing due to disinfectant nature. What is the chemical formula of A?

(a) CaHCO32                       (b) CaO

(c) CaOH2                           (d) CaCO3

(c) NH3Solvay's processNH4ClCaOH2CO2CaCO3A 

Difficulty Level:

  • 14%
  • 18%
  • 46%
  • 25%
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