Benzol is used_____________________?

Related Mcqs:

The hottest part of the flame lies in its _______________ zone?

A. Non-luminous B. Luminous C. Yellow D. Unburnt gases...

Low temperature oxidation of stored coal results in the________________?

A. Decrease in its caking power & calorific value B. Decrease in its carbon & hydrogen content C. Increase in its oxygen content D. All A., B. and A....

Presence of phosphorous in metallurgical coal__________________?

A. Is not undesirable B. Reduces its calorific value C. Badly affects the quality of steel D. Increases its caking power...

Cannel coal__________________?

A. Is non-coking B. Has a high volatile matter content and burns with a luminous smoky flame C. Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named D. All A., B. and C....

Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

A. High rank coals have higher amount of volatile matter B. Ratio of fixed carbon to volatile matter increases C. Oxygen content progressively decreases D. Calorific value of the coal increases...