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. |
The wavelength of X-rays is of the order of |
| Answer» 1 angstrom = 1.0 x 10-10 meters | |
| 2. |
Washing soda is the common name for |
| Answer» What is the scientific name for washing soda? Sodium carbonate (also known as washing soda or soda ash), Na2CO3 is a sodium salt of carbonic acid. Scientific name for baking soda? Sodium bicarbonate or sodium hydrogen carbonate is the chemical compound with the formula NaHCO3. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder. Since it has long been known and is widely used, the salt has many related names such as baking soda, bread soda, cooking soda, and bicarbonate of soda. | |
| 3. |
Which of the gas is not known as green house gas? |
| Answer» In order, the most abundant greenhouse gases in Earth's atmosphere are: * water vapor * carbon dioxide * methane * nitrous oxide * ozone * chlorofluorocarbons | |
| 4. |
The gas usually filled in the electric bulb is |
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Answer» Nitrogen Nitrogen. |
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| 5. |
In vulcanisation, natural rubber is heated with |
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Answer» Sulphur Sulphur. |
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| 7. |
The main constituents of pearls are |
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Answer» CALCIUM CARBONATE and MAGNESIUM Carbonate Calcium Carbonate and Magnesium Carbonate. |
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| 8. |
'Bar' is the unit of |
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Answer» Atmospheric pressure. |
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| 10. |
Gypsum is added to cement clinker to |
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Answer» DECREASE the RATE of SETTING of CEMENT Decrease the rate of setting of cement. |
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| 12. |
Which of the following is not an isotope of hydrogen? |
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Answer» Yttrium Yttrium. |
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| 13. |
Which of the following metals remain in liquid for under normal conditions? |
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Answer» Mercury Mercury. |
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