Question

A student is given equal amount of three samples A, B, C if water with temporary hardness . He keeps the 3 samples at diff. Temperatures - A at room temperature , B at 50C and C at 80C . Which sample would give out maximum amount of lather with soap solution ?

Only A

Both B and C

Only C

both A and B

Answer 1

Both B and C .
I'm just guessing it so wait for someone else

Answer 2

ans is c) because at this temperature water starts to boil so the impurities get removed thus making the water distill.
soap forms max lather with distill water.