Sarath observed a reaction between aluminium and sulphuric acid. He weighed the contents of the flask before perfoming the experiment. The weight of the flask was X g. The reaction took place forming products, aluminium sulphide and hydrogen gas. He weighed the flask after the reaction and found it to be Y g (which is less than X g). Sarath conculded that the law of conservation is not valid. Choose the correct answer among the following options:

Sarath observed a reaction between aluminium and sulphuric acid. He we

1.	Sarath observed a reaction between aluminium and sulphuric acid. He weighed the contents of the flask before perfoming the experiment. The weight of the flask was X g. The reaction took place forming products, aluminium sulphide and hydrogen gas. He weighed the flask after the reaction and found it to be Y g (which is less than X g). Sarath conculded that the law of conservation is not valid. Choose the correct answer among the following options:
Answer» Sarath observed a reaction between aluminium and sulphuric acid. He weighed the contents of the flask before perfoming the experiment. The weight of the flask was X g. The reaction took place forming products, aluminium sulphide and hydrogen gas. He weighed the flask after the reaction and found it to be Y g (which is less than X g). Sarath conculded that the law of conservation is not valid. Choose the correct answer among the following options: