NEET UG CHEMISTRY MCQ: BIOMOLECULES

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Drying oils are so called because they:

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Correct option: D

Are highly unsaturated and so undergo atmospheric oxidation to yield resinous residue and becomes hard solid

Option D (Are highly unsaturated and so undergo atmospheric oxidation to yield resinous residue and becomes hard solid) is correct because drying oils contain many double bonds that react with oxygen, leading to polymerization and hardening.

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A carbohydrate is treated with α-naphthol and conc.

{H_2}S{O_4}

. What colour will be formed at the junction of two liquids? If specific rotation of glucose solution is

52^\circ

and that of fructose solution is

-92^\circ

then what will be the specific rotation of invert sugar? The compound, which give a positive ninhydrin test and a negative Benedict’s solution test, is A good example of an unsaturated acid got by the hydrolysis of an oil is: Glycerine used as a preservative for fruits, vegetables due to The amino acid is directly used as the precursor in the formation of indole acetic acid.