Question

An element `X' forms an oxide on reacting with oxygen this oxide dissolves in water the solution so formed truns red litmus paper bule which combination in the table is correct

Type of element. / Type of xoide
(A) Non metal / Acidic
(B) Non metal/ Basic
(C) Metal / Acidic
(D) Metal / Basic

Answer 1

Correct answer is D, as only metal oxide react with water to form basic hydroxide. And this basic hydroxide turns red litmus to blue. Also, non metal oxide do not react with water.
Hope this will be helpful :)

Answer 2

The correct option is (D).

The simple explanation for it....

Since it turns red litmus blue , therefore it is a basic oxide.
And we know that only metals produce basic/amphoteric oxides when combined with oxygen.


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