Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following aldehydes can produce 1o alcohols when treated with Grignard reagent?

Which of the following aldehydes can produce 1o alcohols when treated with Grignard reagent? Correct Answer Methanal

Methanal on treatment with Grignard reagent forms an adduct which has only one alkyl group attached to the C atom along with two hydrogens and one O-Mg-X (X=halogen) group. This on hydrolysis will form a primary alcohol where the OH group will replace the O-Mg-X group.

Related Questions

Which of the following statements is incorrect regarding preparation of alcohols? give primary alcohol and secondary alcohol respectively b) Ketones on reaction with Grignard’s reagent gives tertiary alcohol c) Aldehydes on reaction with Grignard’s reagent gives primary or secondary alcohol d) Alkyl halides on reaction alcoholic potash gives alcohol
The aldehydes which will not form Grignard product with one equivalent Grignard reagents are a)    b)    c)    d) 
In a village 50% of the villagers produce rice, 40% of the villagers produce apples and 50% of the villagers produce vegetables, 20% of the villagers produce rice and apples both, 25% of the villagers produce apples and vegetables both, 20% of the villagers produce rice and vegetables both and 10% of the villagers produce all three. Find the percentage of villagers who do not produce anything.
How can we prepare RR’ R” OH by the action of excess of a suitable Grignard reagent on which of the following reactants?
How can be a vinylic halide converted into Grignard reagent?
In a village there are 300 people. They produce different crops, out of all people 190 people produce paddy, 160 people produce wheat and 100 people produce both paddy and wheat. Find the number of people who neither produce paddy nor wheat. 
Which of the following statements about Grignard reagent is false?
A Grignard’s reagent may be made by reacting magnesium with which of the following compound?
Which of the following compound gives a ketone with Grignard reagent?
Which of the following cannot be used in formation of benzaldehyde by Grignard reagent?