Why are water-soluble vitamins less likely to be toxic compared to fat-soluble vitamins?

Chemistry

1 answer:

ratelena [41]2 years ago

8 0

Answer:

Water-soluble vitamins are not stored in the body and are excreted in the urine quickly. Unlike water-soluble vitamins, fat-soluble vitamins are dissolved in fat and an excess of them would lead to toxicity if consumed in large amounts because it would lead to rancidity, and they are not easily excreted by urine like water-soluble vitamins.

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A Grignard reagent and a ketone are reacted in ether solution and, followed by an acid workup, form a tertiary alcohol. Recall t

LUCKY_DIMON [66]

Answer:

Option-D (Acetone is a ketone. Grignard reagents will react with acetone to make an unwanted byproduct.) is the correct answer.

Explanation:

Grignard reagents are formed by reacting alkyl halides in the presence of ether and dry atmosphere at controlled conditions. The rinsing of glassware is not suitable to be done with Acetone. This is because of the reactivity of Grignard reagents towards the carbonyl compounds.

In the scheme below it is assumed that a grignard reagent (ethyl magnesium bromide) was reacted with pentan-2-one to synthesise a tertiary alcohol (3-methylhexan-3-ol). But when the glassware is rinsed with acetone, some acetone left in glassware (like Round bottom flask) will react with the grignard reagent and will produce corresponding tertiary alcohol (2-methylbutan-2-ol in this assumption).