NEET · Chemistry · STD 12 - 10. Biomolecules

Sugar 'X'
A. is found in honey.
B. is a keto sugar.
C. exists in \(\alpha\) and \(\beta\) - anomeric forms.
D. is laevorotatory.
'X' is :

A D-Glucose
B D-Fructose
C Maltose
D Sucrose

Verified Solution

Answer & Solution

Correct Answer

(B) D-Fructose

Step-by-step Solution

Detailed explanation

D-fructose is a keto sugar exists in \(\alpha\) and \(\beta\) anomeric forms. Its is laevorotatory, found in honey.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match List \(- I\) with List\(-II.\)

List \(- I\)	List \(- II\)
\((a)\) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)	\((i)\) \(5.92 \,\mathrm{BM}\)
\((b)\) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)	\((ii)\) \(0 \,\mathrm{BM}\)
\((c)\) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}\)	\((iii)\) \(4.90\, \mathrm{BM}\)
\((d)\) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}\)	\((iv)\) \(1.73\, \mathrm{BM}\)

Choose the correct answer from the options given below.

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Sugar 'X'A. is found in honey.B. is a keto sugar.C. exists in \(\alpha\) and \(\beta\) - anomeric forms.D. is laevorotatory.'X' is :

Step-by-step Solution

Sugar 'X'
A. is found in honey.
B. is a keto sugar.
C. exists in \(\alpha\) and \(\beta\) - anomeric forms.
D. is laevorotatory.
'X' is :