DDT should not be allowed to come in contact with iron (during its manufacture) to _______________?

Related Mcqs:

_________________ is produced using Polycondensation Reaction?

A. Polythene B. Phenol formaldehyde C. Poly vinyl chloride D. None of these...

Chemical formula of ‘salt cake’ is____________________?

A. Na2SO4 B. CaSO4 C. MgSO4 D. BaSO4...

The chamber process is______________________?

A. Preferred over contact process for producing 98 to 100% H2SO4 and various oleums B. Non-catalytic and operates only on pyrites C. A batch process for directly producing high strength (98 to 100%) H2SO4 D. None of these...

Which of the following coals has the highest calorific value ?

A. Lignite B. Sub-bituminous C. Anthracite D. Peat...

Metallic soap is ________________ salt of fatty acids ?

A. Sodium B. Potassium C. Both sodium & potassium D. Aluminium or calcium...