17. Which among the following is incorrect for the
oxygen gas?
A. Oxygen is a non-metal.
B. Oxygen constitutes about 21% of air.
C. Oxygen is the main component of water.
D. None of these
Answers
Answered by
0
Answer:
option B
Explanation:
it is because oxygen is 20.95percent in the whole air therefore round figure is 21 percent
Answered by
1
Answer:
c. Oxygen is the main component of water
water constitutes of both oxygen and water
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