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81
Dry ice (solidified CO2) is used for the
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Answer: Option A
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82
Which one of the following is not an elastomer?
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Answer: Option D
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83
Unsaturated oils compared to saturated oils have
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Answer: Option A
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84
Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.
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Answer: Option C
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85
DDT should not be allowed to come in contact with iron (during its manufacture) to
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Answer: Option A
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86
__________ iron is the purest form of iron.
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Answer: Option B
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87
Liquefaction of gases can not be done by
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Answer: Option C
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88
Function of thinner in a paint is to
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Answer: Option C
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89
__________ process is used for the manufacture of sodium carbonate by ammonia soda process.
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Answer: Option C
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90
__________ acid is the main constituent of cotton seed oil.
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Answer: Option B
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