mMCQ.

Navigation Menu

Step into mMCQ.

Launch mMCQ. diagnostic

Explore mMCQ.

MDCAT prepFree DiagnosticPricing & SubscribeSign in

Resources

Terms & Conditions

mMCQ.

© 2021 - 2025 mMCQ.All rights reserved.

WhatsApp
  1. Home
  2. MDCAT
  3. Chemistry
  4. Hydrocarbons
MDCAT
Chemistry
2021

Chemistry · Hydrocarbons

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

Which of the following reaction is used in the preparation of vegetable ghee from oil?

Options
  • A

    Hydration

  • B

    Sulphonation

  • C

    Hydrogenation

  • D

    Dehydrogenation

Explanation

Hydrogenation is the correct answer because it is specifically used in the preparation of vegetable oil and helps in prolonging the shelf life of the oil. Other options such as hydration, sulfonation, and dehydrogenation are not involved in the process of preparing vegetable ghee from oil.

Hydration is the addition of water to a compound or any substance and is not involved in the preparation of oil.

Sulfonation is a reaction that produces benzenesulfonic acid by adding sulfur trioxide and fuming sulfuric acid, but it is not used in the preparation of oil.

Hydrogenation is used for the preparation of vegetable oil and also prolongs the shelf life of oil, making it the correct answer.

The oil dehydration process cleans and dries the oil entirely, but it is not used in the preparation of vegetable ghee from oil.

Keep practising Chemistry

Take the free 2 minutes diagnostic to map weak topics, then unlock full Biology, Chemistry, Physics, English, and Logical Reasoning practice for PKR 15,000/month.

Start free diagnosticExplore MDCAT

Tagged under Chemistry · Hydrocarbons · 2021