Question

Why are cooking vessels made up of metals like copper and aluminium?

• A. Because they are malleable
• B. Because they are shiny
• C. Because they are sonorous
• D. Because they are good conductors of heat

Hint:

Think about why materials like wood or plastic are not used for cooking vessels. They are poor conductors of heat and would not efficiently transfer energy to the food.

Answer 1

The Correct Option is D

Step 1: Consider the primary function of cooking vessels.
Cooking vessels are used to heat food. For efficient cooking, heat needs to be transferred effectively from the heat source to the food inside the vessel.
Step 2: Analyze the properties of copper and aluminium in relation to this function.
Malleability: Malleability is the ability of a metal to be hammered or rolled into thin sheets without breaking. While copper and aluminium are malleable, this property is important for shaping the vessels but not directly for their primary function of heating food.
Shininess: Copper and aluminium are shiny metals when polished, but this aesthetic property does not contribute to the efficiency of cooking.
Sonorousness: Sonorousness is the property of a material to produce a ringing sound when struck. This property is irrelevant to the function of cooking vessels.
Good conductors of heat: Copper and aluminium are excellent conductors of heat. This means they can efficiently transfer heat from the stove or heat source to the food inside the vessel, ensuring uniform and faster cooking.
Step 3: Identify the property that makes copper and aluminium suitable for cooking vessels.
The ability of copper and aluminium to conduct heat efficiently is the primary reason they are used for making cooking vessels. This ensures that the heat is distributed evenly and quickly to cook the food.