आ गयी Pre Board Exam Datesheet 2025-26 Out | CBSE Class 10 and 12 Latest Update🔥📑
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Which one of the following reacts with Grignard reagent to form an addition product which can be hydrolysed to carboxylic acid?
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20%
O₂
47%
CO₂
23%
SO₂
9%
None of these
Vinegar is dilute aqueous solution of:
Anonymous Quiz
29%
Ethanoic acid
26%
Benzoic acid
35%
Citric acid
9%
Oxalic acid
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Which of the following acid reduces Tollen’s reagent?
Anonymous Quiz
29%
Formic acid
46%
Acetic acid
14%
Lactic acid
11%
Oxalic acid
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In several fungi and plants, the term heterothallic and dioecious is used to describe the condition
Anonymous Quiz
29%
Bisexual
40%
Unisexual
27%
Hermaphrodite
4%
None of the above
Which of the following plant is monoecious?
Anonymous Quiz
10%
Cucurbit
38%
Papaya
14%
Datepalm
38%
All of the above
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Which of the following is hermaphrodite?
Anonymous Quiz
33%
Earthworm
23%
Sponge
12%
Leech
32%
All of the above
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Class 12 Physics Chapter 1 Electric Charges and Fields | Revision Classes for Pre Board Exam 2025-26
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