HARDMCQ SINGLEJEE Mains ChemistryInorganic Chemistrys- Block 3.0Achiever Section
A chemical (A) is used for the preparation of washing soda to recover ammonia. When CO₂ is bubbled through an aqueous solution of A, the solution turns milky. It is used white washing due to disinfectant nature. What is the chemical formula of (A)?
A.Ca(HCO₃)₂
B.CaO
C.Ca(OH)₂✓ Correct
D.CaCO₃
Explanation
2 3 2 Ca OH CO CaCO milky white → 4 3 2 2 2 Ca OH 2NH Cl 2NH CaCl 2H O Rcovered A → Ca(OH)₂ is used in white washing of wall and building due to disinfectant nature.
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