Here we have provided all the important Multiple choice questions and answers of Chapter Chemical Industries of 10th class chemistry.
MCQ 1: The boiling point of petrol is
A. below 20
B. 170-120°C
C. 35-70°C
D. 270-340°C
MCQ 2: The percentage of nitrogen (N) in urea (CH4N2O) is
A. 50%
B. 46.60%
C. 40%
D. 20%
MCQ 3: The process of separating metal from ore is called
A. magnetic separation
B.
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