MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following metals remain in liquid for under normal conditions? |
| A. | Radium |
| B. | Zinc |
| C. | Uranium |
| D. | Mercury |
| Answer» E. | |
| 2. |
Potassium Permanganate is used for purifying drinking water, because |
| A. | it is a sterilising agent |
| B. | it dissolves the impurities of water |
| C. | it is a reducing agent |
| D. | it is an oxidising agent |
| Answer» E. | |
| 3. |
Which of the following is an element? |
| A. | Ruby |
| B. | Sapphire |
| C. | Emerald |
| D. | Diamond |
| Answer» E. | |
| 4. |
Brass gets discoloured in air because of the presence of which of the following gases in air? |
| A. | Oxygen |
| B. | Hydrogen sulphide |
| C. | Carbon dioxide |
| D. | Nitrogen |
| Answer» C. Carbon dioxide | |
| 5. |
Which of the following is a non metal that remains liquid at room temperature? |
| A. | Phosphorous |
| B. | Bromine |
| C. | Chlorine |
| D. | Helium |
| Answer» C. Chlorine | |
| 6. |
Sodium metal is kept under |
| A. | petrol |
| B. | alcohol |
| C. | water |
| D. | kerosene |
| Answer» E. | |
| 7. |
Atoms are composed of |
| A. | electrons and protons |
| B. | electrons only |
| C. | protons only |
| D. | electrons and nuclei |
| Answer» E. | |
| 8. |
Which is/are the important raw material(s) required in cement industry? |
| A. | Gypsum and Clay |
| B. | Clay |
| C. | Limestone and Clay |
| D. | Limestone |
| Answer» D. Limestone | |