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CBSE
Class 12 Chemistry
The D-And F-Block Elements
Quiz 2
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Which of the following is a tetrabasic acid?
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Hypophosphorus acid
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Metaphosphoric acid
0%
Pyrophosphoric acid
0%
Orthophosphoric acid
Explanation
Pyrophosphoric acid
Which of the following is not correctly matched?
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Acidic oxides-PONO, CLO
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Basic oxides-NaOm, CaO, MgO
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Neutral oxides-CO, CO, BeO
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Amphoteric oxides-ZnO, SnO,AlO
Explanation
Neutral oxides-CO, CO, BeO
Sulphur molecule is
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diatomic
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triatamic
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tetratomic
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Octa-atomic
Explanation
Octa-atomic
Which of the following oxides is an hydride of nitrous acid ?
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N
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NO
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(i) and (ii)
0%
None of the above
Explanation
N
0 h : 0 m : 1 s
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