Aldehyde, ketones & C.A. Oneshot (1).pdf
52.3 MB
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Biotechnology principles and processes one shot.pdf
16.3 MB
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Which of the following oxides is most acidic?
Anonymous Quiz
23%
(a) CrOโ
53%
(b) CrโOโ
7%
(c) CrO
16%
(d) MnO
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Which ion is colourless in aqueous solution?
Anonymous Quiz
30%
(a) Tiยณโบ
30%
(b) Cuยฒโบ
33%
(c) Znยฒโบ
7%
(d) Niยฒโบ
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Which of the following pairs shows diagonal relationship due to lanthanoid contraction?
Anonymous Quiz
18%
(a) Nb and Ta
52%
(b) Zr and Hf
24%
(c) Ti and Zr
7%
(d) Mo and W
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Cerium (Ce) is used as:
Anonymous Quiz
34%
(a) Oxidising agent in volumetric analysis
34%
(b) Catalyst in Haberโs process
20%
(c) Alloying element in stainless steel
11%
(d) Photographic developer
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Which actinide is used in nuclear reactors?
Anonymous Quiz
12%
(a) Thorium-232
50%
(b) Uranium-235
8%
(c) Plutonium-239
30%
(d) All of these
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KMnOโ acts as an oxidising agent in acidic medium because:
Anonymous Quiz
33%
(a) Mn has +2 oxidation state in KMnOโ
52%
(b) Mn has +7 oxidation state in KMnOโ
7%
(c) It supplies nascent oxygen
9%
(d) It produces Mnยฒโบ ions
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