Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemistry in Everyday Life
Plaster of Paris consists of a fine white powder of _______ sulphate.
1
Sodium
2
Calcium
3
Magnesium
4
More than one of the above
5
None of the above