Class 12 Chemistry MCQ Chapter 14 Biomolecules Solutions to each chapter is provided in the list so that you can easily browse through different chapters Class 12 Chemistry MCQ Chapter 14 Biomolecules Question Answer and select need one. Class 12 Chemistry MCQ Chapter 14 Biomolecules Guide Download PDF. AHSEC Chemistry Multiple Choice Class 12 Solutions.
Class 12 Chemistry MCQ Chapter 14 Biomolecules
Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. HS 2nd Year Chemistry Objective Type Solutions are part of All Subject Solutions. Here we have given NCERT Class 12 Chemistry Multiple Choice Question and Answer, NCERT Class 12 Chemistry Objective Type Solutions for All Chapters, You can practice these here.
Biomolecules
Chapter: 14
| MCQ |
1. Which of the following is classified as a monosaccharide?
(i) Sucrose.
(ii) Glucose.
(iii) Lactose.
(iv) Maltose.
Ans: (ii) Glucose.
2. Which of the following is called a sugar?
(i) Glucose.
(ii) Cellulose.
(iii) Starch.
(iv) All the above.
Ans: (i) Glucose.
3. A monosaccharide with a keto group is known as a:
(i) Aldose.
(ii) Ketose.
(iii) Pentose.
(iv) Hexose.
Ans: (ii) Ketose.
4. The functional group which is found in amino acids is
(i) COOH
(ii) -NH2
(iii) -CH3
(iv) Both (a) and (b).
Ans: (iv) Both (a) and (b).
5. The purine base absent in ribonucleic acid is:
(i) Uracil.
(ii) Cytosine.
(iii) Adenine.
(iv) Guanine.
Ans: (i) Uracil.
6. Which one is the complementary base in RNA strand to the thymine base in DNA during protein synthesis?
(i) Adenine.
(ii) Uracil.
(iii) Cytosine.
(iv) Guanine.
Ans: (ii) Uracil.
7. On oxidation with a mild oxidising agent like Br2/H20, the glucose is oxidised to
(i) Saccharic acid.
(ii) Glucaric acid.
(iii) Gluconic acid.
(iv) Valeric acid.
Ans: (iii) Gluconic acid.
8. Phenyl ketone urea is a disease caused by the deficiency of:
(i) Vitamin B.
(ii) Protein.
(iii) Hormones.
(iv) Cellulose
Ans: (ii) Protein.
9. Which of the following statements is true about sucrose?
(i) It is a reducing sugar.
(ii) It is composed of glucose and fructose.
(iii) It can undergo Schiff’s test.
(iv) It has a free aldehyde group.
Ans: (ii) It is composed of glucose and fructose.
10. Starch is primarily stored in which parts of plants?
(i) Leaves.
(ii) Flowers.
(iii) Roots and tubers.
(iv) Stems.
Ans: (iii) Roots and tubers.
11. Cellulose is a polymer of:
(i) β-D(+) glucose.
(ii) a-D(+) glucose.
(iii) ẞ-D(-) glucose.
(iv) a-D(-) glucose.
Ans: (i) β-D(+) glucose.
12. In maltose, the glycosidic linkage is present between:
(i) Glucose and fructose.
(ii) Glucose and galactose.
(iii) Two molecules of fructose.
(iv) Glucose and glucose.
Ans:(iv) Glucose and glucose.
13. Which of the following is not a water soluble vitamin?
(i) Vitamin D.
(ii) Vitamin B.
(iii) Vitamin C.
(iv) None of these.
Ans: (i) Vitamin D.
14. What is cellulose composed of?
(i) α-D-glucose units.
(ii) β-D-glucose units.
(iii) Fructose units.
(iv) Lactose units.
Ans: (ii) β-D-glucose units.
15. Proteins are polymers of which biomolecules?
(i) Nucleic acids.
(ii) Amino acids.
(iii) Fatty acids.
(iv) Polysaccharides.
Ans: (ii) Amino acids.
