Shyam was cooking potato curry on a chulha. To his surprise, he observed that the copper vessel was getting blackened from the outside. It may be due to:
(a) proper combustion of fuel.
(b) improper cooking of potato curry.
(c) improper combustion of the fuel.
burning of the copper vessel.

Question

Shyam was cooking potato curry on a chulha. To his surprise, he observed that the copper vessel was getting blackened from the outside. It may be due to:
(a)	proper combustion of fuel.
(b)	improper cooking of potato curry.
(c)	improper combustion of the fuel.
burning of the copper vessel.

MyClass24 · Accepted Answer

Soln:

Answer is (c) improper combustion of the fuel.
The copper vessel was blackened from outside because of the insufficiency of oxygen.

Shyam was cooking potato curry on a chulha. To his surprise, he observed that the copper vessel was getting blackened from the outside. It may be due to: (a) proper combustion of fuel. (b) improper cooking of potato curry. (c) improper combustion of the fuel. burning of the copper vessel.