HARDMCQ SINGLEJEE Mains ChemistryInorganic ChemistryHydrogenAchiever Section
Assertion: Permanent hardness of water can be removed by using washing soda. Reason: Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates.
A.A✓ Correct
B.B
C.C
D.D
Explanation
Permanent hardness of water can be removed by using washing soda. Washing soda reacts with soluble calcium and magnesium chloride and sulphates in hard water to form insoluble carbonates. 2 2 3 3 MCl Na CO MCO 2NaCl → 4 2 3 3 2 4 MSO Na CO MCO Na SO → Where, (M = Mg, Ca)
Practice More Like This
Take chapter-wise tests, track your progress, and master Hydrogen.
Start Free Practice →