Question

Multiple choice questions: (07)

1. Name the method will use to separate mustard oil from water.

(a) Sedimentation (b) Filtration

(c) Decantation (d) None of these

2. What kind of change in melting of ice?

(a) Physical change (b) Chemical change

(c) Harmful change (d) A very slow change

3. Which of these is a poor conductor of heat?

(a) Copper (b) Wood

(c) Aluminum (d) Steel

4. What are junk foods?

(a) Foods rich in carbohydrate.

(b) Foods rich in proteins.

(c) Foods rich in vitamins and minerals.

(d) Foods that have very little proteins, vitamins, minerals and fibres.

5. What causes poor vision in dim light?

(a) Vitamin A (b) Vitamin B

(c) Calcium (d) Iron

6. Which of these joints allow maximum movement?

(a) Pivotal joint (b) Hinge joint

(c) Ball and socket joint (d) Gliding joint

7. What is the function of phloem?

(a) To carry water absorbed by the roots to every other part.

(b) To make food for the plant.

(c) To carry food prepared in the leaves to all the parts of the plants.

(d) To protect the plant from water loss.​

Answer 1

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Answer 2

Answer:

1. (d) None of these

Explanation:

1. The mixture of water and mustard oil can be separated using a separating funnel.