Nmdcat Practice Paper from PMDC Syllabus | mosaicbro.com

Nmdcat Practice Paper from PMDC Syllabus

7 of 197 questions (Page 14 of 29)

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92 Which of the following has the highest boiling point?
Correct Answer: C
Explanation: Carboxylic acids have high boiling points due to strong hydrogen bonding (dimer formation).
93 Which reagent can be used to convert a primary alcohol into a carboxylic acid?
Correct Answer: C
Explanation: KMnO₄ oxidizes primary alcohols (RCH₂OH) to carboxylic acids (RCOOH).
94 What is the formula of butanoic acid?
Correct Answer: B
Explanation: Butanoic acid (butyric acid) is CH₃CH₂CH₂COOH (C₄H₈O₂).
95 What is the product when carboxylic acid reacts with SOCl₂ (thionyl chloride)?
Correct Answer: C
Explanation: SOCl₂ converts RCOOH to RCOCl (acid chloride), releasing SO₂ and HCl.
96 Decarboxylation of carboxylic acids involves:
Correct Answer: B
Explanation: Decarboxylation removes CO₂ (e.g., RCOOH → RH + CO₂ when heated).
97 Which of the following cannot be synthesized by direct oxidation of a primary alcohol?
Correct Answer: D
Explanation: Tertiary alcohols (e.g., tert-butanol) resist oxidation to carboxylic acids due to lack of α-hydrogens.
98 What is the function of follicle-stimulating hormone (FSH) in males?
Correct Answer: C
Explanation: FSH stimulates the Sertoli cells in the testes to produce sperm.
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