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JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Self Evaluation Test - The s-Block Elements

  • question_answer
    A compound (A) is used in preparation of washing soda to recover ammonia in Solvay's process. When\[C{{O}_{2}}\]. 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) \[Ca{{(HC{{O}_{3}})}_{2}}\]

    B) \[CaO\]

    C) \[Ca{{(OH)}_{2}}\]     

    D) \[CaC{{O}_{3}}\]

    Correct Answer: C

    Solution :

    [c] \[N{{H}_{3}}\uparrow \xrightarrow[\begin{smallmatrix}  Solvay's \\  process \end{smallmatrix}]{N{{H}_{4}}Cl}\underset{[A]}{\mathop{Ca{{(OH)}_{2}}}}\,\] \[\xrightarrow{C{{O}_{2}}}CaC{{O}_{3}}\]


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