Asked in FBISE Chemistry 2023 — Paper 2 2023Moderate

Reaction of triglycerides with alkalies is called:

Correct answer: B. Saponification

  • A. Hydration
  • B. Saponification
  • C. Hardening
  • D. Dehydration

Explanation

Saponification is the reaction of triglycerides (fats and oils) with alkalies (such as sodium hydroxide or potassium hydroxide) to produce soap and glycerol. During saponification, the ester bonds in triglycerides are hydrolyzed by the alkali, resulting in the formation of soap molecules and glycerol.

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About Carboxylic Acid Derivatives

Carboxylic acid derivatives include acid halides, acid anhydrides, esters and amides, formed by replacing the hydroxyl group of a carboxylic acid. Their nomenclature, structures, preparation, hydrolysis and relative reactivity are linked through nucleophilic acyl substitution, which differs from the nucleophilic addition reactions of aldehydes and ketones.

Practise Carboxylic Acids

550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

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