InterviewSolution
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InterviewSolution
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Assertion (A): s- block elements can form ionic hydrides. Which on electrolysis in fused state give `H_(2)` gas at cathode. Reason (R) : s-block elements have low IE and low EN as compared to p-block elements.A. If both A and R are correct and R is the correct explanation for A.B. If both A and R are correct and R is not the correct explanation for A.C. If A is correct and R is incorrectD. If A is incorrect and R is correct |
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Answer» Correct Answer - D Correct assertion: s-block elements form ionic hydrides but gives `H_(2)` gas at anode, e.g. `NaH rarr Na^(o+) + H^(ɵ)` `2H^(ɵ) rarr H_(2)+2e^(-)` (oxidation occurs at anode) Reason is correct. |
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