In the Haber process, 30 L of H₂ and 30 L of N₂ are allowed to react. If the reaction gives only 50% of the theoretically expected yield of NH₃, what will be the composition of the gaseous mixture at the end of the reaction?

1. 20 L ammonia, 10 L nitrogen, 30 L hydrogen

2. 10 L ammonia, 25 L nitrogen, 15 L hydrogen

3. 20 L ammonia, 20 L nitrogen, 20 L hydrogen

4. 20 L ammonia, 25 L nitrogen, 15 L hydrogen

1 gm butane (C₄H₁₀) is burnt with excess of O₂ to form CO₂. What mass of CO₂ is produced?

1. 1gm

2. 2gm

3. 3gm

4. 4gm

If 0.5 mole of BaCl₂ reacts with 0.2 mole of Na₃PO₄, what is the maximum number of moles of Ba₃(PO₄)₂ that can be formed?

What is the number of moles of PbCl₂ formed when 6.5 g of PbO reacts with 3.2 g of HCl?

1. 0.044
2. 0.333
3. 0.011
4. 0.029