Civil Engineering MCQJE Level Civil Engineering
The main constituent of limestone is:
Physics and ChemistryPhysics and ChemistryEASY
Choose the correct answer
A
sodium chloride
B
calcium sulphate
C
silicon carbide
D
calcium carbonate
Correct Answer
D. calcium carbonate
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Limestone is mainly CaCO3. This gives the answer: calcium carbonate.
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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.