Carbon content of pitch (residue of coal tar distillation) is around __________ percent.
70
55
80
94
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- Which of the following is not produced commercially from sea water?
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- Soap cannot be used with hard water, because
- Which of the following is an yellow pigment?
- Oil is a/an
- Caprolactam (a raw material for nylon-6 manufacture) is produced from
- Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.
- Rotary kiln is not involved in the production of
- Zeigler process
- The noble gas which occurs most abundantly in the atmosphere is
- Sucrose content in the raw juice extracted from sugar cane is about __________ percent.
- Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome…
- Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
- Sucrose content in cane sugar may be around __________ percent.
- Sugar content in sugarcane on cane basis is about __________ percent by weight.
- Nylon-66 is so named because the
- Synthesis gas is a mixture of
- Lime and soda ash are added to water to remove
- __________ is used as a flux in the smelting of copper ore like chalcopyrite.
- Nylon-6 is a