The number of moles of oxygen in 1 L of air containing 21% oxygen by volume, in standard conditions, is [CBSE PMT 1995; Pb. PMT 2004]

Question: The number of moles of oxygen in 1 L of air containing 21% oxygen by volume, in standard conditions, is [CBSE PMT 1995; Pb. PMT 2004]

(a) 0.186 mol

(b) 0.21 mol

(c) 2.10 mol

(d) 0.0093 mol


Correct Answer: (d) 0.0093 mol


The number of moles of oxygen in 1 L of air containing 21% oxygen by volume, in standard conditions, is [CBSE PMT 1995; Pb. PMT 2004] (a) 0.186 mol (b) 0.21 mol (c) 2.10 mol (d) 0.0093 mol


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