Alkylbenzene sulfonate (ABS) is a____________________?
(A) Detergent
(B) Rubber
(C) Pesticide
(D) Polyester
Portland cement consists mainly of__________________?
(A) CaO & SiO2
(B) SiO2 & Al2O3
(C) CaO & Al2O3
(D) CaO & Fe2O3
Fluorescent dyes are added in detergents to__________________?
(A) Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics
(B) Attain distinctiveness from other brands
(C) Act as tarnish inhibitor for metals like German silver
(D) None of these
Main constituents of natural rubber is____________________?
(A) Polystyrene
(B) Polyisoprene
(C) Polybutadiene
(D) Polychlorophrene
Which of the following is not required in the manufacture of soda ash by Solvay process ?
(A) Ammonia
(B) Limestone
(C) Nitric acid
(D) None of these
Deacon’s method is used for the manufacture of____________________?
(A) Glauber’s salt
(B) Common salt
(C) Chlorine
(D) Graphite electrode
Ethyl alcohol cannot be produced_________________?
(A) From waste sulphite substrate of paper mills
(B) By Esterification and hydrolysis of ethylene
(C) From molasses
(D) None of these
Concentration of NaOH solution produced by mercury electrolytic cell is about _______________ percent?
(A) 10
(B) 25
(C) 50
(D) 98
Bordeaux mixture is a/an________________?
(A) Fertiliser
(B) Inorganic fungicide
(C) Insecticide
(D) Explosive