Statement-1 : Mobility of mercury (Hg) d...

Statement-1 : Mobility of mercury `(Hg)` decreases and its starts sticking to glass when it brought in contract with ozone.
Statement-2 : Ozone oxidises mercury to `Hg_(2)O` which dissolves in mercury.
Statement-2 : ozone oxidises mercury to `Hg_(2)O` which dissolves in mercury.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-13

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-14

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

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The correct Answer is:

A

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Which statements about mercury are correct?

Statement-1: H_(2)O_(2) liberates O_(2) when it reacts with acidified KMnO_(4) solution Statement-2: KMnO_(4) oxidised H_(2)O_(2) to O_(2) .

Statement -1 : Ozone is a powerful oxidising agent in comparison to O_(2) . Statement -1 : O_(3) molecules is diamagnetic but O_(3)^(-) is paramagnetic.

Statement -1 : The volatge of mercury cell remains constant for its life time. Statement -2 : Overall cell reaction does not involve any ion.

Statement 1: Ozone hole is the thinning of ozone layer. Statement 2: Ozone is a poisonous gas that leads thinning of the atmosphere.

Statement-1: The voltage of mercury cell remains constant for long period of time. Statement-2: It is because net cell reaction does not involve active species.

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