A) Dolomite
B) A marble structure
C) Calcined gypsum
D) Sea shells
Correct Answer: C
Solution :
[c] Calcined gypsum Dolomile & marble: In this \[CaC{{O}_{3}}\]is mixed with magnesium carbonate. Sea-shells are also containing \[CaC{{O}_{3}}\]Calcined gypsum- Gypsum does not contain\[CaC{{O}_{3}}\]. As it should not be allowed to come in contact with carbon containing fuel otherwise some of it will be reduced to calcium sulphite.You need to login to perform this action.
You will be redirected in
3 sec