The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of
(1) Sulphonation
(2) Dehydration
(3) Oxidation
(4) Reduction
Which of the following statement is not true about glucose? (1) It is an aldopentose. (2) It is an aldohexose. (3) It contains five hydroxyl groups. (4) It is a reducing sugar.
Which of the following is a basic amino acid ? (1) Serine (2) Alanine (3) Tyrosine (4) Lysine
The non-essential amino acid among the following is: (1) valine (2) leucine (3) alanine (4) lysine
The correct observation in the following reaction is: $\require{mhchem}\ce{Sucrose->[\text{Gly cosidic bond}][\text{Cleavage (Hydrolysis)}]A + B->[\text{Seliw anoff}][\text{Reagent}]?}$ (1) Formation of blue colour (2) Formation of violet colour (3) ...
Deficiency of which vitamin causes osteomalacia? (1) Vitamin E (2) Vitamin A (3) Vitamin D (4) Vitamin K
Which of the following acid will form an (a) Anhydride on heating and (b) Acid imide on strong heating with ammonia?
Which of the following statements is not correct? (a) Ovalbumin is a simple food reserve in egg white. (b) Blood proteins thrombin and fibrinogen are involved in blood clotting. (c) Denaturation makes the proteins more active. (d) Insulin maintains sugar ...
The two functional groups characteristic of sugars are : (1) carbonyl and phosphate (2) carbonyl and methyl (3) hydroxyl and methyl (4) carbonyl and hydroxyl
Which of the following will NOT undergo SN1 reaction with OH- ? (1) (2) CH2 = CH – CH2Cl (3) (CH3)3CCl (4)
Which of the following statement is NOT true about acid rain? (1) Its pH is less than 5.6 (2) It is due to reaction of SO2, NO2 and CO2 with rain water (3) Causes no damage to monuments like Taj Mahal (4) It is harmful for plants
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