Home Chemistry Some Basic Concepts of Chemistry The Mole Concept If H 2 SO 4 is formed from it’s elements by …
Chemistry Some Basic Concepts of Chemistry The Mole Concept Single Correct MCQ
Published on: August 14, 2026

If H 2 SO 4 is formed from it’s elements by taking 6.023 × 10 23 atom of ‘O’ 5.6 litre of H 2 gas at STP and 8 g S then

A
0.125 moles of H 2 SO 4 are formed
B
0.25 moles of H 2 SO 4 are formed
C
no moles of ‘S’ are left
D
1/4 mole of O 2 is left

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(b,c)

H 2 + S + 2O 2 → H 2 SO 4

= = n s = = =

As all reactants are in stoichiometric ratios, none will be left behind.

Hence mole of H 2 SO 4 is formed.

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