When silver metal reacts with sulfur in the air, a new substance is formed. This is called _ and is formed through _ change.

Varnish & physical

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Tarnish & physical

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Varnish & chemical

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Tarnish & chemical

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Solution

The correct option is D
Tarnish & chemical

Tarnish is a substance which forms on the surface of some metals and which stains them or causes them to lose their brightness. This due to outermost layer undergoing a chemical reaction.

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When silver metal reacts with sulfur in the air, a new substance is formed. This is called _________ and is formed through _________ change.

The correct option is D Tarnish & chemical Tarnish is a substance which forms on the surface of some metals and which stains them or causes them to lose their brightness. This due to outermost layer undergoing a chemical reaction.

When silver metal reacts with sulfur in the air, a new substance is formed. This is called _ and is formed through _ change.

The correct option is D
Tarnish & chemical

Tarnish is a substance which forms on the surface of some metals and which stains them or causes them to lose their brightness. This due to outermost layer undergoing a chemical reaction.