Q.

Percentage of ash by analysis of coal is given by            

A. (weight of residue/weight of sample) × 100
B. (weight of sample – weight of residue) × 100
C. (weight of sample – weight of residue)/weight of sample × 100
D. (weight of residue – weight of sample) × 100
Answer» A. (weight of residue/weight of sample) × 100
Explanation: ash is weight of residue obtained after complete combustion of 1 g of coal at 700‐750°c. ash in % is given by, %a
1.5k
0
Do you find this helpful?
21

View all MCQs in

Engineering Chemistry

Discussion

No comments yet