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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