Moderate

The melting point of palmitic acid is

Correct answer: C. 63.1 C°

  • A. -8 C°
  • B. 8 C°
  • C. 63.1 C°
  • D. 56 C°

Explanation

Palmitic acid is a saturated fatty acid with a 16-carbon chain, which contributes to its relatively high melting point of 63.1°C. Saturated fatty acids typically have higher melting points due to the lack of double bonds, allowing closer packing. The incorrect options either reflect temperatures appropriate for unsaturated fatty acids or are incorrect for palmitic acid. Option A (-8°C) and Option B (8°C) are too low for a saturated fatty acid, while Option D (56°C) is close but not the precise melting point of palmitic acid.

Last updated

About Biological Molecules

The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.

Practise Biological Molecules

1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Biology questions like this

Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions