JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Alkali Metals

  • question_answer
    When washing soda is heated [AFMC 2005]

    A) CO is released

    B) \[CO+C{{O}_{2}}\] is released

    C) \[C{{O}_{2}}\] is released

    D) Water vapour is released

    Correct Answer: D

    Solution :

    \[\underset{\text{washing}\,\text{powder}}{\mathop{N{{a}_{2}}C{{O}_{3}}\,\,.\,\,10{{H}_{2}}O}}\,\xrightarrow{\Delta }N{{a}_{2}}C{{O}_{3}}\,\,.\,\,{{H}_{2}}O\xrightarrow{\Delta }\]\[N{{a}_{2}}C{{O}_{3}}+{{H}_{2}}O\uparrow \]

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