Chemical Process

A. Remove residual turbidity
B. Reduce the bacterial load on filter
C. Control taste and odour
D. Remove chlorinous taste

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.

A. Explosive
B. White lead
C. Filter aid
D. ZnS (white pigment)

A. Employs addition polymerisation
B. Employs condensation polymerisation
C. Is a monomer
D. Is an abrasive material

A. FeSO4
B. PbO
C. CaO
D. NaOH

A. 0.6
B. 1.2
C. 2.2
D. 3.8

A. Acrylonitrile and butadiene
B. Acrylonitrile and styrene
C. Isobutylene and isoprene
D. None of these

A. Cellulose
B. Lignin
C. Pentogens
D. None of these

A. Anthracene
B. Creosote oil
C. Carbolic oil
D. None of these

A. 300
B. 1100
C. 700
D. 900