Assertion : Sucrose undergoes mutarotation.
Reason : Sucrose is a disaccharide
A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.
AIIMS 2002, Easy
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B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
b Sucrose which is a disaccharide undergoes mutarotation because it is converted into glucose and fructose on hydrolysis and the products have different optical activity from that of the reactant.
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A natural product was isolated in the laboratory and its observed rotation was $+10^o$. When meausured in a $1\,\, dm$ sample tube containing $1\, gm$ of compoud in $10\, ml$ of water. What is the specific rotation of this compound.
Assertion : Alpha $\left( \alpha \right) - $ amino acids exist as internal salt in solution as they have amino and carboxylic acid groups in near vicinity.
Reason : $H^+$ ion given by carboxylic group $(-COOH)$ is captured by amino group $(-NH_2)$ having lone pair of electrons.