

MCQOPTIONS
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1. |
A certain metal M is used to prepare an antacid, which is used as a medicine in acidity. This metal accidently catches fire which can not be put out by using \[C{{O}_{2}}\] based extinguishers. The metal M is [BHU 2002] |
A. | \[Ca\] |
B. | C |
C. | Mg |
D. | All of these |
Answer» D. All of these | |