Which of the following pair of elements represents a mole ratio of 1 : 1?
(a) 10 g of calcium and 12 g of magnesium
(b) 12 g of magnesium and 6 g of carbon
(c) 12 g of carbon and 20 g of calcium
(d) 20 g of sodium and 20 g of calcium

Academic Chemistry NCERT Class 9

Correct Answer: (b) 12 g of magnesium and 6 g of carbon

Explanation: 12 g of magnesium and 6 g of carbon will have a mole ratio of 1 : 1.

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Updated on: 10-Oct-2022

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