A. hard water contains insoluble calcium salts.
B. they contain bleaching powder.
C. they contain palmitic acid.
D. they do not form insoluble calcium and magnesium salts.
E. they are organic compounds.

Correct Answer:

Option D – they do not form insoluble calcium and magnesium salts.

SEE ALSO  Bauxite is the ore of?

Copyright warnings! Do not copy.