Civil Engineering MCQJE Level Civil Engineering
What does hard water contains mainly most nearly denote?
Physics and ChemistryPhysics and ChemistryMEDIUM
Choose the correct answer
A
calcium and magnesium salts
B
oxygen and nitrogen gases
C
sodium chloride only
D
sulphur dioxide
Correct Answer
A. calcium and magnesium salts
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calcium and magnesium salts is the correct association for hard water contains mainly.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.