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JEE Advanced 2019 Paper 1
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Question : 23
Total: 54
Which of the following statement(s) is(are) true?
Oxidation of glucose with bromine water gives glutamic acid
Hydrolysis of sucrose gives dextrorotatory glucose and laevorotatory fructose
The two six-membered cyclic hemiacetal forms of D-(+)-glucose are called anomers
Monosaccharides cannot be hydrolysed to give polyhydroxy aldehydes and ketones
Validate
Solution:
(1)
Glucose
B
r
2
–
–
–
–
–
–
>
H
2
O
Gluconic
acid
.
(2)
Sucrose
H
2
O
–
–
–
–
>
Glucose
(
+
)
+
Fructose
(
−
)
(3)
(4) Mono saccharioles do not undergoes further hydrolysis is due to absence of etherlinkage.
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