Question

Bhavna ne 1 January 2016 ko ek yantra 28000 kray Kiya Jo 5 varshon Tak prayog Kiya Ja sakta hai iska avashyak mulya usmein Hai varshik Hash ki ganana kijiye​

Answer 1

FOLLOW ✌️+10THANKS ❤️=INBOX...

Answer 2

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Dilute sulphuric acid reacts with calcium carbonate. But it is not used because the calcium sulphate which is formed during the reaction is insoluble in water. It covers the marble chips and stops the reaction.

Hope it helps