A chemical A is used for the preparation of washing soda to recover ammonia. When C02 is bubbled through an aqueous solution of A, the solution tons milky. It is used in white washing due to disinfectant nature. What is the chemical formula of A? (a) Ca(C03)2 (b) CaO (c) Ca(OH)2 (d) CaC03

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Option Ca(oh)2
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In a metallic bond, why positive ions are called kernels, not cations?
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