Multiple choice general knowledge

Which is found in egg shells?

  1. CaCl

  2. CaNo3

  3. CaCO3

  4. CaSO4+NaCl

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Eggshells are primarily composed of calcium carbonate (CaCO3), which makes up about 95% of the shell's structure. CaCl (calcium chloride), CaNo3 (calcium nitrate), and CaSO4 (calcium sulfate) are different salts not found as the primary structural component of eggshells.