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Chemical Reaction

New substance...

Question

New substance is formed in this change
(a) physical
(b) chemical
(c) periodic
(d) irreversible

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Solution

(b) chemical

In a chemical change, a new substance is formed. This newly formed substance shows different properties from the original substance.

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Q. Changes, in which new substances with different properties are formed, are called

(a) physical changes
(b) chemical changes
(c) irreversible changes
(d) reversible changes

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(a) physical change
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(a) periodic and non-periodic changes
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Statement 2: New substances are formed during chemical changes.

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