Arihant Physical Chemistry. We covered all the Arihant Physical Chemistry MCQs in this post for free so that you can practice well for the exam.
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Arihant Physical Chemistry Objective for Students
Ethanol is added in the hydrolysis of cane sugar to:
(A) Increase solubility of glucose
(B) Decrease rate of reaction
(C) Increase rate of reaction
(D) Separate glucose from fructose
Option d – Separate glucose from fructose
Glucose is oxidized with Bromine water to give:
(A) n-Hexane
(B) Saccharic acid
(C) Glucose pentaacetate
(D) Gluconic acid
Option d – Gluconic acid
Glucose reacts with ethanoic anhydride to give:
(A) Glucose triacetate
(B) Glucose tetracetate
(C) Glucose pentaacetate
(D) Glucose hexacetate
Option c – Glucose pentaacetate
Carbohydrates containing only three asymmetric carbon atoms are:
(A) Xylose, fructose
(B) Erythrose, xylose
(C) Arabinose, galactose
(D) Ribose, dihydroxyacetone
Option a – Xylose, fructose
Glucose and fructose are, respectively:
(A) Pentahydroxy aldehyde and pentahydroxy ketone
(B) Tetrahydroxy alcohol and pentahydroxy ketone
(C) Pentahydroxy alkanal and hexahydroxy ketone
(D) Pentahydroxy ketone and pentahydroxy aldehyde
Option a – Pentahydroxy aldehyde and pentahydroxy ketone
Carbohydrates that, on hydrolysis, produce 2 to 10 units of monosaccharides are called:
(A) Sugars
(B) Monosaccharides
(C) Oligosaccharides
(D) Polysaccharides
Option c – Oligosaccharides
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