MCQ
Enzymes are found in all living cell. Their main functions is:
- ATo help in the digestion of food.
- BTo allow chemical to food reaction.
- CTo speed up the break down of substance.
- DTo accelerate the rate of chemical reactions.
Explanation:
Enzymes are biocatalysts that causes a change in the rate of a chemical reaction i.e they may enhance (accelerate) or reduce the rate of a chemical reaction.
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| Column I | Column II |
| (a) Molarity | (1) $\frac{\text { Mass of solute }}{\text { Mass of solution }} \times 10^6$ |
| (b) Molality | (2) Number of gram moles of a solute per litre of solution |
| (c)Normality | (3) Number of gram moles of a solute per kg of solvent |
| (d) ppm | iv) Number of gram equivalent of a solute per litre of solution |