Q5 of 270 Page 96

What would be the colour of litmus in a solution of sodium carbonate?

Sodium carbonate would impart blue colour to limus as it is alkaline in nature.


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3

State whether the following statement is true or false:

Copper sulphate crystals are always wet due to the presence of water of crystallization in them.

 4

Which of the following salt has a blue colour and why?

CuSO4.5H2O or CuSO4

 6

State the common and chemical names of the compound formed when plaster of Paris is mixed with water.

 7

With which substance should chlorine be treated to get bleaching powder?