1.

Sarath is observing a reaction between aluminium and sulphuric acid. Before the reaction, he weighed the contents of the flask and it was X g. After the reaction, aluminium sulphide and hydrogen are the products of this reaction. When he weighed the flask after the reaction, it was Y g (which is less than X g). Sarath declares that the law of conservation of mass is not valid. Select the correct option.

Answer»

Sarath is observing a reaction between aluminium and sulphuric acid. Before the reaction, he weighed the contents of the flask and it was X g. After the reaction, aluminium sulphide and hydrogen are the products of this reaction. When he weighed the flask after the reaction, it was Y g (which is less than X g). Sarath declares that the law of conservation of mass is not valid. Select the correct option.




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