Which of the following alcohols cannot be prepared by reduction of carbonyl compounds?
(a) Pentan-l-ol
(b) Pentan-2-ol
(c) 2-Methylpentan-2-ol
(d) 3-Methylpentan-2-ol
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Which of the following cannot be separated by sublimation when it is mixed with Sand A) Salt
Correct option is A) Salt
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Which of the following images cannot be caught on the screen ?
Correct option is B) Virtual
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Which of the following cannot be the probability of an event?
Correct option is (B) –1.5 \(0\leq P(E)\leq1\) for any event E. It means probability of any event never be negative and never be greater than 1. \(\therefore\) - 1.5 never be the probability of any...
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Sugars are converted into alcohols by
Sugars are converted into alcohols by Yeast.
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From which one of the following plants, the insecticide pyrethrum is prepared?
(c) Chrysanthemum
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Assertion : Only a small amount of HCl is required in the reduction of nitro compounds with iron scrap and HCl in the presence of steam.
(iv) Both assertion and reason are correct statements and reason is correct explanation of assertion.
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What are interstitial compounds? Why are such compounds well known for transition metals?
i. Interstitial compounds are those which are formed when small atoms like H, C, N, B, etc., are trapped inside the crystal lattice of metals. ii. Interstitial compounds have variable composition...
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Which of the following can work as a dehydrating agent for alcohols ?
Correct Answer - D These question are based upon facts or formulae
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Double salts are addition compounds which lose their identify in aqueous solution whereas complexes which are also addition compounds do not lose thei
Correct Answer - D It is homogeneous catalyst for hydrogenation of alkenes.
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Assertion: Alcohols give only substitution products with `HX` and not elimination product. Reason: `X^(-)` is a very weak base which cannot abstract p
Correct Answer - A If both assertion and reason are true and the reason is the correct explanantion of the asseriton.
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