Q5 of 55 Page 29

Write the chemical formula of blue vitriol.

Blue vitriol is common name for Copper sulphate solution which has chemical formula as CuSO4.


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3

Name the chemical compound which is used as a disinfectant for water.

 4

When a sodium compound X which is also used in soda-fire extinguisher is heated, gives a sodium compound Y along with water and carbon dioxide. Y on crystallisation forms compound Z. Identify X, Y and Z.

 1

Which acid is present in vinegar?

 2

Which solution is more acidic, one with a pH of 4 or one with a pH of 1?