Which of the following is the most poisonous gas ?

Related Mcqs:

Caking index of a coal is a measure of its _______________________?

A. Abradability B. Reactivity C. Agglutinating (binding) properties D. Porosity...

The average molecular weight of a flue gas having the composition by volume as CO2 = 25%, O2 = 25%, N2 = 50% will be___________________?

A. 27.6 B. 23 C. 47.3 D. 42.9...

With increase in the oxygen content of the coal, its ______________ decreases?

A. Calorific value B. Caking power C. Both A. & B. D. Neither A. nor B....

Caking coal is desirable for_________________?

A. Burning on travelling grate B. Coke making C. Burning on firebars D. All A., B. and C....

Power alcohol as compared to straight run gasoline has lower ________________?

A. Calorific value B. Octane number C. Specific gravity D. Viscosity...