sblock Elements - Result Question 37

Assertion and Reason

Read the following questions and answer as per the direction given below :

(a) Statement I is correct; Statement II is correct; Statement II is the correct explanation of Statement I

(b) Statement I is correct; Statement II is correct; Statement II is not the correct explanation of Statement I

(c) Statement I is correct; Statement II is incorrect

(d) Statement I is incorrect; Statement II is correct

47.

Statement I The alkali metals can form ionic hydrides which contain the hydride ion, $H^{-}$.

Statement II The alkali metals have low electronegativity, their hydrides conduct electricity when fused and liberate hydrogen gas at the anode.

$(1994,2 M)$

Show Answer

Answer:

Correct Answer: 47. (a)

Solution:

  1. Alkali metal forms $M H$ in which hydrogen is in -1 oxidation state. Both statements are correct and statement -2 is correct explanation of statement I.


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