Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?

Related Mcqs:

Corrosion in boilers can be prevented by _________________?

A. Deaeration of feed water B. Enhancing pH of feed water by adding alkali C. Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion D. All A., B. and C....

The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?

A. Pipe vibrations B. Cavitation C. Boundary layer separation D. Fluctuation in liquid flow...

Maximum permissible turbidity in potable water is _____________ ppm?

A. 1 B. 10 C. 250 D. 1000...

Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundries causes___________________?

A. Asphyxiation (suffocation) B. Shortness of breath C. Tuberculosis D. All A., B. and C....

Hazardous/polluting chemical industries should have an ‘exclusion zone’ with a green belt and general public access prohibited around it, covering a radius of _____________ metres?

A. 100 B. 1000 C. 400 D. 4000...