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Chemistry
Calcium metal is used to produce high vacuum because it
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Q. Calcium metal is used to produce high vacuum because it
The s-Block Elements
A
can remove water
17%
B
can remove both $O_2$ and $N_2$
52%
C
is a good reductant
21%
D
is highly electropositive
10%
Solution:
Calcium metal reacts with both oxygen and nitrogen and removes them