Bleaching Powder (CaOCl₂)

Author:S K Malhotra
10th CBSE
IMPORTANT

Important Questions on Bleaching Powder (CaOCl₂)

MEDIUM
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Acids, Bases and Salts>Bleaching Powder (CaOCl₂)> Q 1

State two important uses of bleaching powder.

HARD
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Acids, Bases and Salts>Bleaching Powder (CaOCl₂)> Q 2

What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.

HARD
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Acids, Bases and Salts>Bleaching Powder (CaOCl₂)> Q 3

What is bleaching powder? How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder.

HARD
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Acids, Bases and Salts>Bleaching Powder (CaOCl₂)> Q 4

How is chloride of lime chemically different from calcium chloride? Why does the former lose its chlorine when kept exposed in air?

MEDIUM
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Acids, Bases and Salts>Bleaching Powder (CaOCl₂)> Q 5

Write the chemical equation for the action of atmospheric CO2 gas on bleaching powder when left exposed in open.