| 1 |
Ammonia is prepared by the process . |
- A. Ostwald
- B. Haber
- C. Clark
- D. All
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| 2 |
Manufacturing of urea involves: |
- A. 2 steps
- B. 3 steps
- C. 4 steps
- D. 5 steps
|
| 3 |
The number of carbon atoms present in petroleum ether. |
- A. 1-5
- B. 2-5
- C. 3-7
- D. 5-7
|
| 4 |
The elements that do not conduct heat and electricity are called. |
- A. Metallurgy
- B. Non metal
- C. Metalloid
- D. Alloy
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| 5 |
Blast furnace usually used for the metallurgy of. |
- A. Iron
- B. Copper
- C. Aluminum
- D. Both a and b
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| 6 |
Crude oil is heated to the fractionating furnace upto. |
- A. 300 <sup>o</sup>C
- B. 350<sup>o</sup>C
- C. 400<sup>o</sup>C
- D. 450<sup>o</sup>C
|
| 7 |
Red hair contains compound of. |
- A. Iron
- B. copper
- C. titanium
- D. Molybdenum
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| 8 |
The number of carbon atoms present in fuel oil. |
- A. 14-18
- B. 15-18
- C. 16-18
- D. 17-18
|
| 9 |
When NaHCO<sub>3</sub> is heated it forms. |
- A. CO<sub>2</sub>
- B. Ca(OH)<sub>2</sub>
- C. CaCO<sub>3</sub>
- D. CaO
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| 10 |
A saturated solution of sodium chloride is called. |
- A. Brine
- B. Suspension
- C. Colloidal
- D. None of these
|