NCERT Solution Class X Science Carbon and its Compounds Question 3 (Ex 4.7)

Question 3:

While cooking, if the bottom of the vessel is getting blackened on the outside, it .

means that

(a) the food is not cooked completely.

(b) the fuel is not burning completely.

(c) the fuel is wet.

(d) the fuel is burning completely.

Answer:

(b) While cooking, if the bottom of the vessel is getting blackened on the outside,

then it means that the fuel is not burning completely.

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