Let Us Enhance Our Learning Which metal is commonly used to make food packaging Class 7

Let Us Enhance Our Learning Which metal is commonly used to make food packaging Class 7

Let Us Enhance Our Learning (Pages 55-56) Class 7

Question 1.

Which metal is commonly used to make food packaging materials as it is cheaper, and its thin sheets can be folded easily into any shape?

(i) Aluminium

(ii) Copper

(iii) Iron

(iv) Gold

Answer:

(i) Aluminium

Question 2.

Which of the following metal catches fire when it comes in contact with water?

(i) Copper

(ii) Aluminium

(iii) Zinc

(iv) Sodium

Answer:

(iv) Sodium