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51
The indicator used in nonaqueous titration of barbiturates is:
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Answer: Option A
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52
An essential requirement of the mobile phase in HPLC is that
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Answer: Option A
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53
In gel permeation chromatography molecules are separated on the basis of their
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Answer: Option B
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54
Chopper is used in which instrument?
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Answer: Option C
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55
Pre-mix burner is also known as . . . . . . . .
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Answer: Option C
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56
Affinity chromatography specialized form of
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Answer: Option A
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57
The solvent used in NMR studies is
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Answer: Option C
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58
A substance used for modification of silica gel for reversed phase TLC is:
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Answer: Option B
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59
Stationary phase in thin-layer chromatography (TLC) is
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Answer: Option A
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60
Which of the following is most affected by the temperature changes in flame photometry?
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Answer: Option C
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