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In three test tubes A b …

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In three test tubes A b and c namely liquid distilled water underground water and distilled water in which pinch of calcium sulphate is dissociated respectively are taken equal amount of soap solution is added to each test tube and the contents are shaken in which test tube the length of foam is longer

Posted by Nandini Jain 5 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Ajay Jaat 5 years, 1 month ago

Test tube a is right .because test tube.c is hard water and soap does not react to form foam .and test tube a doesnot contain ion so it react with it more suitably.so answer is A

Chetna ? 5 years, 1 month ago

This is the question of set 1

Chetna ? 5 years, 1 month ago

I think test tube C me kuch or bhi hona caahiye thaaa........ distilled water repeat kra gyaa hai......

Chetna ? 5 years, 1 month ago

Test tube B

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