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- Question
Specific gravity on API scale is given by the relation(where, G = specific gravity at 15.5°C).
Options- A. °API = 200(G - 1)
- B. °API = (141.5/G) - 131.5
- C. °API = (140/G) - 130
- D. °API = 145 - (145/G)
- Correct Answer
- °API = (141.5/G) - 131.5
- 1. Pick out the wrong statement.
Options- A. The effect of pressure on heat capacity of gases at pressure above one atmosphere and above the critical temperature is negligible.
- B. The value of Cp of gases increases with increase in pressure, above atmospheric pressure.
- C. The value of Cp at critical temperature and pressure reaches infinity.
- D. all (a), (b), and (c). Discuss
- 2. 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be __________ gm.
Options- A. 0.5
- B. 1
- C. 3
- D. 5 Discuss
- 3. Liquid ammonia is not used as such a fertiliser in tropical countries like India, because
Options- A. its N2 content is very low.
- B. it is very costly.
- C. it will evaporate on spraying.
- D. it is not available. Discuss
- 4. Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
Options- A. 1.5:1
- B. 3.5:1
- C. 10:1
- D. 15:1 Discuss
- 5. Pick out the wrong statement.
Options- A. All the nitrogenous fertilisers are not soluble in water.
- B. A straight fertiliser contains only one nutrient.
- C. Calcium cynamide is used as weed killer in onion fields.
- D. The phosphorous nutrient makes the plant stem stronger and increases its branches. Discuss
- 6. Molar heat capacity of water in equilibrium with ice at constant pressure is
Options- A. 0
- B. ?
- C. 1
- D. none of these Discuss
- 7. In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the
Options- A. total pressure.
- B. absolute humidity at a given temperature.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 8. Atoms of the same element, but of different masses are called
Options- A. isobars
- B. isotones
- C. isotopes
- D. none of these Discuss
- 9. Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the
Options- A. same elevation in boiling point.
- B. different elevation in boiling point.
- C. elevation in boiling point in the ratio of their molecular weights.
- D. none of these. Discuss
- 10. With rise in pressure, the solubility of gases in solvent, at a fixed temperature
Options- A. increases
- B. decreases
- C. remains unchanged
- D. decreases linearly Discuss
Stoichiometry problems
Search Results
Correct Answer: The effect of pressure on heat capacity of gases at pressure above one atmosphere and above the critical temperature is negligible.
Correct Answer: 0.5
Correct Answer: it will evaporate on spraying.
Correct Answer: 3.5:1
Correct Answer: All the nitrogenous fertilisers are not soluble in water.
Correct Answer: ?
Correct Answer: both (a) and (b).
Correct Answer: isotopes
Correct Answer: same elevation in boiling point.
Correct Answer: increases
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