Pick out the wrong statement.

Question

Options:

A . Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal

B . Ammonia is recovered in the form of ammonium sulphate in direct process of by-product recovery

C . A high swelling index number of coking coal indicates poor caking properties of coal

D . Wash oil is used for scrubbing benzol from coke oven gas

Answer: Option C

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More Questions on This Topic :

Question 1. Gray King Assay and Swelling Index of a coal is a measure of its....

Question 2. Caking index of a coal is a measure of its....

Question 3. Micum Index of a coke is a measure of its....

Question 4. Weathering of coal during storage causes....

Question 5. Low temperature oxidation of coal is accelerated by the....

Question 6. Washing of coal is done to reduce the....

Question 7. Which of the following is not a by-product fuel?....

Question 8. Which of the following is not a by-product fuel?....

Question 9. Carbon Content by weight in air dried wood may be about __________ percent.....

Question 10. Dry air required to burn 1 kg of carbon completely may be around __________ kg.....

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