Question

Which amongst the following statement(s) is/are true for a chemical reaction? Give an example to support your answer:-
(i) All chemical reactions result in the formation of new products.
(ii) Mass can neither be created nor destroyed in a chemical reaction.
(iii) Mass can be destroyed only if gases are evolved.
(iv) Mass can be destroyed only if solids are evolved.​

Answer 1

i) and ii) are true

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