InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the reaction vessel 100g `H_(2) and 100g Cl_(2)` are mixed and suitbale conditions are provided for the following reactions: `H_(2)(g)+Cl_(2)(g) overset(?)to 2HCl(g)` The limiting reagent in this reaction will be:A. `H_(2)`B. `Cl_(2)`C. bothD. cannot be predicted |
| Answer» Correct Answer - b | |
| 2. |
In the reaction vessel 100g `H_(2) and 100g Cl_(2)` are mixed and suitbale conditions are provided for the following reactions: `H_(2)(g)+Cl_(2)(g) overset(?)to 2HCl(g)` Select the correct statement(s) for the above reaction:A. Presence of light is required for this reactionB. It is chaing requiredC. Catalyst is requiredD. All of the above |
| Answer» Correct Answer - a,b | |
| 3. |
In the reaction vessel 100g `H_(2) and 100g Cl_(2)` are mixed and suitbale conditions are provided for the following reactions: `H_(2)(g)+Cl_(2)(g) overset(?)to 2HCl(g)` The amount of excesss reactant remaining is:A. 50gB. 97.2gC. 46gD. 64g |
| Answer» Correct Answer - b | |
| 4. |
Assuming that petrol is octane `(C_(8)H_(18))` and has a density of `0.8g Ml^(-1)`, 1,425 litre of petrol on combustion will consume:A. 100 mole of phosphineB. 124 mole of phosphineC. 150 mole of phosphine acidD. 175 mole of phosphorus pentaoxide |
| Answer» Correct Answer - A | |
| 5. |
What mass of `HNO_(3)` is needed to convert 5g of the iodine into iodic acid according to the reaction `I_(2)+HNO_(3) to HIO_(3)+NO_(2)+H_(2)O`A. 12.4gB. 24.8gC. 0.248gD. 49.6g |
| Answer» Correct Answer - a | |
| 6. |
On analysis, a certain compound was found to contain iodine and oxygen in the ratio of 254:80. The formula of the compound is: (At. mass I=127,O=16)A. IOB. `I_(2)O`C. `I_(5)O_(2)`D. `I_(2)O_(5)` |
| Answer» Correct Answer - D | |
| 7. |
10mL of a solution of `H_(2)O_(2)` liberated 0.5 g of iodine from Kl solution. The percentage of `H_(2)O_(2)` in the solution is:A. 0.27gB. 0.67gC. 0.47gD. 0.87g |
| Answer» Correct Answer - B | |
| 8. |
If a mixture of `3` mol of `H_(2)` and `1 "mole"` of `N_(2)` is completely converted into `NH_(3)`, what would be the ratio of the initial and final volume at same temperature and pressure?A. `3:1`B. `46.6`C. `59.1`D. `61.3` |
| Answer» Correct Answer - C | |
| 9. |
The decomposition of cetian mass of `CaCO_(3)` gave `11.2dm^(3)` of `CO_(2)` gas at STP. The mass of KOH required to completely neutralise the gas is:A. 56gB. 28gC. 42gD. 20g |
| Answer» Correct Answer - a | |
| 10. |
The percentage of nitrogen in urea is about:A. 38.4B. 46.6C. 59.1D. 61.3 |
| Answer» Correct Answer - B | |
| 11. |
An alkaloid contains 17.28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of alkaloid is:A. fiveB. fourC. threeD. two |
| Answer» Correct Answer - D | |
| 12. |
At NTP, 10 litre of hydrogen sulphide gas reacted with 10 litre of sulphur dioxide gas. The volume of gas, after the reaction is complete, would be:A. 5litreB. 10litreC. 15litreD. 20litre |
| Answer» Correct Answer - A | |
| 13. |
The volume of oxygen at NTP evolved when 1.70 g of sodium nitrate is heated to a constant mass is:A. 0.112litreB. 0.224litreC. 22.4litreD. 11.2litre |
| Answer» Correct Answer - B | |
| 14. |
For the formation of 3.65 g of hydrogen chloride gas, what volumes of hydrogen gas and chlorine gas are required at NTP conditions?A. 1.12L,1.12LB. 1.12L,2.24LC. 3.65L,1.83LD. 1L,1L |
| Answer» Correct Answer - A | |
| 15. |
What volume of hydrogen at NTP will be liberated was is 3.25 g of zinc completely dissolve in dilute HCl? (At. mass of Zn=65)A. 1.12litreB. 11.20litreC. 2.24litreD. 22.40litre |
| Answer» Correct Answer - A | |
| 16. |
The formula of chloric acid is `HClO_(3)`. The formula for calcium chlorate is:A. `CaClO_(3)`B. `Ca(ClO_(3))_(2)`C. `Ca_(2)ClO_(3)`D. `Ca(ClO_(3))_(2)` |
| Answer» Correct Answer - B | |
| 17. |
2.0 g mixture of sodium carbonate and sodium bicarbonate on heating to constant mass gave 224mL of `CO_(2)`, at NTP. The % mass of sodium bicarbonate in the mixture is:A. 50B. 54C. 80D. 84 |
| Answer» Correct Answer - D | |
| 18. |
The volume of oxygen required for complete oxidation ofA. 2litreB. 4litreC. 1litreD. 3litre |
| Answer» Correct Answer - B | |
| 19. |
The `%` loss in weight heating a pure sample of potassium chlorate `(M. wt. 122.5)` will be :A. 12.25B. 24.5C. 39.17D. 49 |
| Answer» Correct Answer - C | |
| 20. |
2 mol of `H_(2)S` and 11.2 L of `SO_(2)` at N.T.P. react to form x moles of sulphur, x is `SO_(2)+2H_(2)S to 3S +2H_(2)O`A. 1.5B. 3C. 11.2D. 6 |
| Answer» Correct Answer - a | |
| 21. |
`Fe^(2+)toFe^(3+)+e^(-), MnO_(4)^(-)+5e^(-)toMn^(2+)`, the ratio of stoichiometric coefficient of `Fe^(2+) and MnO_(4)` is:A. `1:5`B. `5:1`C. `2:3`D. `6:1` |
| Answer» Correct Answer - B | |
| 22. |
`MnO_(4)^(2-)` (`1` mole) in neutral aqueous medium is disproportionate toA. 2/3 mole is `MnO_(4)^(-)` and 1/3 mole `MnO_(2)`B. 1/3 mole is `MnO_(4)^(-)` and 2/3 mole `MnO_(2)`C. 1/3 mole is `Mn_(2)O_(7)^(-)` and 1/3 mole `MnO_(2)`D. 2/3 mole is `Mn_(2)O_(7)^(-)` and 1/3 mole `MnO_(2)` |
| Answer» Correct Answer - A | |