MCQOPTIONS
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MCQOPTIONS
This section includes 75 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which one is not |
| A. | Sulpher |
| B. | Sugar |
| C. | Zinc |
| D. | Copper |
| Answer» B. Sugar | |
| 52. |
Milk |
| A. | mixture |
| B. | element |
| C. | metal |
| D. | none of these |
| Answer» B. element | |
| 53. |
Bar |
| A. | pressure |
| B. | force |
| C. | energy |
| D. | frequency |
| Answer» B. force | |
| 54. |
'Misch metal' |
| A. | material of car brake |
| B. | smoke detectors |
| C. | cigarette lighters |
| D. | emergency lights |
| Answer» D. emergency lights | |
| 55. |
Sodium carbonate |
| A. | hygroscopy |
| B. | deliquescence |
| C. | efflorescence |
| D. | none of these |
| Answer» D. none of these | |
| 56. |
Diamond |
| A. | an element |
| B. | a compound |
| C. | a mixture |
| D. | a liquid |
| Answer» B. a compound | |
| 57. |
Which one of the following laws explain the formation of |
| A. | Law of conservation of mass |
| B. | Law of multiple proportion |
| C. | Law of reciprocal proportions |
| D. | Law of definite proportions |
| Answer» C. Law of reciprocal proportions | |
| 58. |
What is the elements present in |
| A. | C, H, O |
| B. | C, N, O |
| C. | C,N,H |
| D. | C, O, N, H |
| Answer» E. | |
| 59. |
An element |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 6 |
| Answer» E. | |
| 60. |
Which of the following chemicals is used in foam |
| A. | Aluminium sulphate |
| B. | Copper sulphate |
| C. | Cobalt sulphate |
| D. | Nickel sulphate |
| Answer» B. Copper sulphate | |
| 61. |
What is the composition of |
| A. | Nitrogen and limestone |
| B. | Calcium carbide and nitrogen |
| C. | Calcium carbide and carbon |
| D. | None of these |
| Answer» E. | |
| 62. |
Air |
| A. | Compound |
| B. | element |
| C. | mixture |
| D. | solution |
| Answer» D. solution | |
| 63. |
In known |
| A. | metals |
| B. | non-metals |
| C. | metalloids |
| D. | none of these |
| Answer» B. non-metals | |
| 64. |
Which one of the following mixture is |
| A. | Starch and sugar |
| B. | Methanol and water |
| C. | Graphite and charcoal |
| D. | Calcium carbonate and calcium bicarbonate |
| Answer» C. Graphite and charcoal | |
| 65. |
A gas is found to have the formula |
| A. | 5 |
| B. | 4 |
| C. | 9 |
| D. | 6 |
| Answer» B. 4 | |
| 66. |
Which one of the following laws directly explains the |
| A. | Hund's law |
| B. | Dalton's law |
| C. | Avogadro's law |
| D. | Berzelius hypothesis |
| Answer» D. Berzelius hypothesis | |
| 67. |
Which one is the |
| A. | glass |
| B. | cement |
| C. | sodium |
| D. | none of these |
| Answer» D. none of these | |
| 68. |
The credit for the discovery of |
| A. | Hahn |
| B. | Rutherford |
| C. | Seaborg |
| D. | Curie |
| Answer» D. Curie | |
| 69. |
The best standard of |
| A. | carbon - 12 |
| B. | oxygen - 16 |
| C. | hydrogen - 1.008 |
| D. | chlorine - 35.5 |
| Answer» B. oxygen - 16 | |
| 70. |
Which one of the following substance does not have a |
| A. | bromine |
| B. | sodium chloride |
| C. | mercury |
| D. | glass |
| Answer» E. | |
| 71. |
Oxygen |
| A. | allotropes |
| B. | isomers |
| C. | isotopes |
| D. | isobars |
| Answer» B. isomers | |
| 72. |
Which one among the following is the |
| A. | 1 mole of water molecules |
| B. | 1 mole of ammonia molecules |
| C. | 1 mole of sodium atoms |
| D. | 1 mole of hydrogen molecules |
| Answer» D. 1 mole of hydrogen molecules | |
| 73. |
How many moles are there is |
| A. | 5 |
| B. | 10 |
| C. | 28 |
| D. | 140 |
| Answer» B. 10 | |
| 74. |
Among the given nutrients, |
| A. | calcium |
| B. | Protein |
| C. | carbohydrate |
| D. | vitamin C |
| E. | .. |
| Answer» E. .. | |
| 75. |
Consider the following statements. Equivalent weight of the compound is the weight of it that combines with or displaces directly |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» E. | |