Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Chemistry Some Basic Concepts of Chemistry

One mole of oxygen gas at STP is equal to

i 6.022 × 1023 molecules of oxygen

ii 6.022 × 1023 atoms of oxygen

iii 16 g of oxygen

iv 32 g of oxygen

1
i & iv
2
i & ii
3
iii & ii
4
ii & iv
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