Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 14
| 1. |
Safety matches is produced using |
| A. |
red phosphorus | | B. |
yellow phosphorus | | C. |
black phosphorus | | D. |
elemental sulphur |
Answer: Option A
Explanation:
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| 2. |
Calorific value of __________ are almost same. |
| A. |
lignite & anthracite coal | | B. |
lignite & coal gas | | C. |
petrol & diesel | | D. |
coal gas & natural gas |
Answer: Option C
Explanation:
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| 3. |
Which of the following pairs is not correctly matched ? |
| A. |
Uranium - 233 : Fertile material. | | B. |
Bindingenergy : Mass defect. | | C. |
Scattering: Absorption cross-section. | | D. |
Number of nucleons : Mass number. |
Answer: Option A
Explanation:
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| 4. |
Commonly used flux for brazing is |
| A. |
zinc chloride | | B. |
borax | | C. |
ammonium chloride | | D. |
rosin |
Answer: Option B
Explanation:
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| 5. |
Iron has got __________ isotopes. |
Answer: Option B
Explanation:
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