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The gas from the oven in Coking process of coal is scrubbed with H2S04 to remove ammonia. Is the statement true/false?

The gas from the oven in Coking process of coal is scrubbed with H2S04 to remove ammonia. Is the statement true/false? Correct Answer True

The statement is true and the gas from the oven is cooled to remove tars, to remove aromatics it is scrubbed with light oil, scrubbed with sulfuric acid to remove ammonia leaving behind coal gas.

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