The amount of Zinc (atomic weight = 65) necessary to produce 224 mL of H2 (at STP) by the reaction with dilute sulphuric acid will be:
1. | 0.65 g | 2. | 7.6 g |
3. | 6.5 g | 4. | 8.5 g |
On complete decomposition, the volume of CO2 released at STP on heating 9.85 g of BaCO3 (atomic mass, Ba = 137) will be:
1. 1.12 L
2. 4.84 L
3. 2.12 L
4. 2.06 L
ln, a closed vessel, 50 ml of completely reacts with 200 ml of C2 according to the following equation:
The composition of the gaseous mixture in the system will be:
1. 100 ml
2. 25 ml
3. 75 ml
4. 10 ml
In a reaction A + B2 → AB2,
A will act as a limiting reagent if :
i. | 300 atoms of A reacts with 200 molecules of B |
ii. | 2 moles A reacts with 3 moles B2 |
iii. | 100 atoms of A reacts with 100 molecules of B |
iv. | 5 moles A reacts with 2.5 moles B |
v. | 2.5 moles A reacts with 5 moles B2 |
Choose the correct option:
1. (i), (ii)
2. (i), (ii), (v)
3. (ii), (v)
4. All
1. | 40 mol | 2. | 10 mol |
3. | 20 mol | 4. | 30 mol |