1. Glycogen is an example of?
- (b) Nucleic acids
- (b) Carbohydrates
- (c) proteins
- (d) All of these
2. Deficiency of vitamin A causes?
- (a) Scurvy
- (b) rickets
- (c) Night blindness
- (d) aging
3. The compound found in in every living cell and serves as a center of information control is?
- (a) Protein
- (b) amino acid
- (c) DNA
- (d) glucose
4. Triglycerides are the building blocks of?
- (a) Protein
- (b) Lipids
- (b) carbohydrates
- (d) vitamins
5. Sugars are polyhydroxy derivative of?
- (a) Alkhyl halides
- (b) Ketone
- (c) Aldehyde and ketone
- (d) none of these
6. Peptide linkage is present in?
- (a) Carbohydrates
- (b) lipids
- (c) Proteins
- (d) Vitamins
7. Plants convert glucose into?
- (a) Amino acid
- (b) Proteins
- (c) lipids
- (d) vitamins
8. All are present in DNA except?
- (a) Deoxyribose sugar
- (b) Nitrogen base
- (c) ribose sugar
- (d) phosphate unit
9. Each vitamin plays an important role in?
- (a) Healthy development
- (b) body growth
- (c) Both of these
- (d) none of these
10. Vitamin C is necessary for the formation of?
- (a) Blood
- (b) immune system improvement
- (c) Protection against illness
- (d) all of these
11. The calculation of the efficiency of a chemical reaction can be checked by knowing the amount of
- A) The limiting reactant
- B) The product formed
- C) The access reagent
- D) The substance left unused
12. When one mole of each of the following is completely burnt in oxygen, which will give the largest mass of CO2
- A) CO
- B) Diamond
- C) Ethane
- D) Methane
13. When liquid solute is dissolved in liquid solvent, then the best unit of concentration is
- A) % w/w
- B) % w/v
- C) % v/v
- D) % v/w
14. The molarity of 2% w/v NaOH solution is
- A) 2M
- B) 0.05M
- C) 0.25M
- D) 0.5M
14. What is the molarity of the solution when 45g of glucose is present in 500cm3 of solution
- A) 5M
- B) 2.5M
- C) 0.5M
- D) 4M
16. Which of the following concentration unit will changes with temperature
- A) Molarity
- B) %w/v
- C) Mole fraction
- D) %w/w
17. In a mixture of 7g nitrogen and 8g oxygen, mole fraction of nitrogen is
- A) 0.3
- B) 0.25
- C) 0.1
- D) 0.50
18. The mass of glucose required to prepare 1dm3 of 20% glucose solution is
- A) 18g
- B) 180g
- C) 36g
- D) 200g
19. Molarity of pure water is
- A) 1M
- B) 18M
- C) 55.5M
- D) 6M
20. Solution contains 1 mole of alcohol and 4 mole of H2 The mole fraction of H2O and alcohol will be
- A) 4/5 and 4/1
- B) 4/1 and 1/4
- C) 1/5 and 4/5
- D) 4/5 and 1/5
21. Liquid have no definite shape, it is because
- A) The molecules of liquid are in constant motion by sliding over each other
- B) The intermolecular forces of liquid are weaker than gases
- C) The liquid molecules of liquids are weaker than gases
- D) All statements are correct
22. A class of materials with highly variable mechanical and optical properties solidify from the molten state without crystallization are called
- A) True solids
- B) Amorphous solids
- C) Crystalline solids
- D) All of these
23. Gases deviate from ideal behavior at high pressure. Which of the following correct for non-ideality
- A) At high pressure, the gas molecules move in one direction only
- B) At high pressure, the collision between the gas molecules are increased manifold
- C) At high pressure, the volume of the gas becomes insignificant
- D) At high pressure, the inter-molecular attractions becomes significant
24. If both temperature and volume of a gas are doubled, the pressure
- A) Cannot be predicated
- B) Is reduced to ½
- C) Remain unchanged
- D) Is doubled
25. Which one is the form of general gas equation
- A) PV = nRT
- B)PVn = RT
- C) PV = RT
- D) All of these
| Test 1 | Test 2 | Test 3 | Test 4 | Test 5 |
| Test 6 | Test 7 | Test 8 | Test 9 | Test 10 |
