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61
Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
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Answer: Option A
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62
Contact process of sulphuric acid manufacture
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Answer: Option A
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63
Catalytic oxidation of toluene produces
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Answer: Option B
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64
Which of the following processes can remove both temporary as well as permanent hardness of water?
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Answer: Option C
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65
Which of the following is not responsible for causing permanent hardness of water?
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Answer: Option A
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66
Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
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Answer: Option D
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67
Liquor poisoning generally occurs due to the presence of __________ in it.
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Answer: Option C
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68
Sulphur removal by heating of pyrite ore in presence of air is called its
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Answer: Option B
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69
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
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Answer: Option B
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70
Reaction of calcium carbide with water produces a gas, which is used
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Answer: Option C
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