Presence of sodium tripolyphosphate (an additive) in synthetic detergent___________________?

Related Mcqs:

Presence of carbonaceous matter in the sewage____________________?

A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures B. Reduces sulphate ions to sulphides causing obnoxious smell C. Increases the quantity of chlorine used for its purification D. All A, B. and C....

Favourable conditions for the liquefaction of gases in general are _____________________?

A. High pressure & low temperature B. Low pressure & high temperature C. High pressure & high temperature D. Low pressure & low temperature...

Oleum produces fumes of_____________________?

A. SO2 B. H2SO4 C. SO3 D. SO2 + H2SO4...

Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?

A. 15-30 B. 90-100 C. 250-300 D. < 0...

______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ?

A. Chlorine B. Ammonium chloride C. Sodium carbonate D. Sodium bi-carbonate...