UPSC 1995 › Science & Technology › Chemistry

2 questions · 1995 · answers as per the UPSC key

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UPSC 1995 · Q101 · Science & Technology › Chemistry · Save

Which one of the following is a mixed fertilizer?

(a) CAM

(b) Urea

(c) Ammonium Sulphate

(d) NPK

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Answer: (d) NPK

UPSC 1995 · Q103 · Science & Technology › Chemistry · Save

The chemical used as a ‘fixer’ in photography is

(a) sodium sulphate

(b) sodium thiosulphate

(c) ammonium persulphate

(d) borax

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Answer: (b) sodium thiosulphate