Question

An element burns in air to form an oxide. The aqueous solution of this oxide turns blue
litmus paper red. State whether the element is a metal or a non-metal. Name one such
element.

Answer 1

Answer:

An aqueous solution of magnesium oxide turns turmeric paper red. So Magnesium is the element. It is a metal. So it forms a basic oxide with oxygen.

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Answer 2

Answer:

a) The nature of oxide is basic as it turns red litmus paper blue.

(b) E is metal since it forms basic oxide.

(c) Sodium (Na) is one example of an element like E.

Explanation:

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