Question

Which of the following pair of elements represents a mole ratio of 1:1?

• A. 20 g of sodium and 20 g of calcium
• B. 7 g of nitrogen and 12 gm of sodium
• C. 14 g of nitrogen and 24 g of magnesium
• D. 10 g of calcium and 6 g of carbon

Answer 1

The correct option is C

14 g of nitrogen and 24 g of magnesium

14 g of nitrogen = gram atomic mass of nitrogen = 1 mole of nitrogen atoms

24 g of magnesium = gram atomic mass of magnesium = 1 mole of magnesium atoms

So, mole ratio = 1:1