Class 11 Chemistry Hydrogen Water or hydride of oxygen

Easy

Water is said to be permanently hard when it contains

A
Sulphates of $Mg$ and $Ca$
B
Bicarbonates of $Mg$ and $Ca$
C
Sulphates of $Cu$ and $Hg$
D
Carbonates and bicarbonates of $Mg$ and $Ca$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Hydrogen

Subtopic

Water or hydride of oxygen

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