Question

some water is taken in a beaker and few drops of H2 S o4 added now two electrodes are dipped into the solution and electricity is passed as a result two gases are produced at the two electrodes ,the gas produced at the cathode is collected and ignited.the gas burns with a popping sound. thi observation that- (a) the gase is hydrogen and when ignited an enthodermic reaction takes place (b) the gase is hydrogen and when ignited an exothermic reaction takes place. -- which is correct​

Answer 1

Answer:

The correct option is (b)

The gas burns with a Pop sound suggesting that it is hydrogen. As by burning hydrogen heat is released it is an exothermic reaction.

An exothermic reaction is a reaction in which heat is evolved and an endothermic reaction is which heat is absorbed.

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