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Take some water in a test tube and add c...

Take some water in a test tube and add concentrated `H_2SO_4` to it. Shake the test tube well. If you touch the bottom of the test tube, you feel it as hot. Now, instead of `H_2SO_ 4` , if you add NaOH pellets to water in another test tube and touch the bottom, what do you observe?

Text Solution

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The bottom of test tube is also hot because reactions of acid_s, bases with water are exothermic reactions.
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