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Iqbal treated a lustrous, divalent eleme...

Iqbal treated a lustrous, divalent element M with sodium hydroxide. He observed the formation ,of bubbles in reaction mixture. He made the same observations when this element was treated with hydrochloric acid. Suggest how can he identify the produced gas. Write chemical equations for both the reactions. 

Text Solution

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The produced gas can be identifyed by bringing a buring matchstick near the reaction vessel, a pop sound is produced.
`M + 2NaOH rarr Na_(2)MO_(2) + H_(2)`
`M + 2HCI rarr MCI_(2) + H_(2)`
The element is a metal.
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Knowledge Check

  • Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid. Reason (R ): Carbon dioxide is given off in the reaction.

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and R are true but R is NOT the correct explanation of A.
    C
    A is true but R is false.
    D
    A is false and R is True.

  • Assertion (A): Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid. Reason (R): Carbon dioxide is given off in the reaction.

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and R are true but R is NOT the correct explanation of A
    C
    A is true but R is false
    D
    A is false and R is true.

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