NDA2020General AbilityGeneral ScienceActual
Number of molecules of water of crystallization in copper sulphate, sodium carbonate and Gypsum are
Options
- A5, 10 and 2 respectively
- B10,2 and 5 respectively
- C5,2 and 10 respectively
- D2,5 and 10 respectively
Correct answer
A. 5, 10 and 2 respectively
Step-by-step solution
Copper Sulphate: CuSO ₄ 5 H ₂ O Sodium Carbonate: NA ₂ CO ₃ 10 H ₂ O Gypsum: CaSO ₄ 2 H ₂ O The number of molecules of water of crystallization in copper sulphate is 5 , Sodium carbonate is 10 while in Gypsum it is 2 .