Chalk and marble are different forms of
Calcium hydrogen carbonate
Calcium carbonate
Calcium acetate
Sodium carbonate
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2020
– Marble is a metamorphic rock composed primarily of recrystallized carbonate minerals, most commonly calcite.
– Chalk is a soft, white, porous sedimentary rock, a form of limestone composed primarily of the mineral calcite.
– Calcium carbonate is also the main component of shells of marine organisms, snails, and eggshells.