CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Preparation of Alcohols from Alkenes

Decolorizatio...

Question

Decolorization of $K M n O_{4}$ solution takes place when it reacts with ethene. The final product of this reaction which is used as anti-freeze is:

A

ethylene glycol

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

propylene glycol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

ethanol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

propanol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D ethylene glycol
Hydroxylation of ethene takes place in the presence of cold $K M n O_{4}$ to form Ethylene glycol. The reaction can be written as:
$C H_{2} = C H_{2} M n O_{4}^{2 -} - --- \to 25^{\circ} C H O C H_{2} - C H_{2} O H + M n O_{2}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Choose the correct word/phrase from within the brackets to complete the following sentences:
(i) The catalyst used for conversion of ethene to ethane is commonly __________ (nickel/iron/cobalt).
(ii) When acetaldehyde is oxidized with acidified potassium dichromate, it forms _________ (ester/ethanol/acetic acid).
(iii) Ethanoic acid reacts with ethanol in presence of concentrated H₂SO₄, so as to form a compound and water. The chemical reaction which takes place is called __________ (dehydration/hydrogenation/esterification).
(iv) Write the equation for the reaction taking place between 1, 2-dibromoethane and alcoholic potassium hydroxide.
(v) The product formed when ethene gas reacts with water in the presence of sulphuric acid is ________ (ethanal/ethanol/ethanoic acid).

Q. When ethene reacts with bromine in aqueous sodium chloride solution the product/(s) obtained is /(are):

Q. Write the observation and name of the product for the following:
(i) When ethene is passed in bromine solution in CCl₄.
(ii) When Baeyer's reagent reacts with ethene.

Q. (i) What type of reaction takes place between ethane and chlorine to form monochloroethane?
(ii) The reaction between ethene and chlorine forms only one product. Name the type of the reaction.
(iii) (a) Draw the structural formula of ethene.
(b) What is the feature of the ethene structure, which allows ethene to react with chlorine in the way it does?

Q. Ethylene decolorizes alkaline

{K M n O}_{4}

solution. This is due to:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Preparation of Alcohols 1

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Preparation of Alcohols from Alkenes

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon