COMPASSLearning
RegisterLogin

JEE Main · 2023 · 10 Apr 2023 · Shift 2 · Chemistry in Everyday Life

WhatsApp Email
The reaction used for preparation of soap from fat is:
  1. (A)reduction reaction
  2. (B)alkaline hydrolysis reaction✓ Correct
  3. (C)an addition reaction
  4. (D)an oxidation reaction

Answer: (B)

Solution

Soap is prepared from fats through saponification, which is the alkaline hydrolysis of esters. Fats (triglycerides) are heated with a strong base like NaOH or KOH, breaking the ester bonds to produce glycerol and fatty acid salts (soap). This is a hydrolysis reaction carried out under alkaline conditions.

JEE Main · 2023 · 10 Apr 2023 · Shift 2 · Single correct option

Practise more: all JEE Main PYQs on Chemistry in Everyday Life →

More JEE Main questions on Chemistry in Everyday Life

  1. Given below are two statements:-
    Statement-I: Morphine is a narcotic analgesis. It helps in relieving pain without producing sleep.
    Statement-II: Morphine and its derivatives are obtained from opium poppy.
    In the light of the above statements, choose the correct answer from the o …
    JEE Main 2023View solution →
  2. The statement/s which are true about antagonists from the following is/are :-
    A. They bind to the receptor site.
    B. Get transferred inside the cell for their action.
    C. Inhibit the natural communication of the body.
    D. Mimic the natural messenger.

    Choose the correct answer from …
    JEE Main 2023View solution →
  3. Given below are two statements :

    Statement I : Noradrenaline is a neurotransmitter.
    Statement II : Low level of noradrenaline is not the cause of depression in human.
    In the light of the above statements, choose the correct answer from the options given below
    JEE Main 2023View solution →
  4. Which of the following statements is incorrect for antibiotics?
    JEE Main 2023View solution →
  5. Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

    Assertion A :- Butylated hydroxyl anisole when added to butter increases its shelf life.

    Reason R :- Butylated hydroxyl anisole is more reactive towards oxygen than food.

    In th …
    JEE Main 2023View solution →
  6. A doctor prescribed the drug Equanil to a patient. The patient was likely to have symptoms of which disease?
    JEE Main 2023View solution →