The term PVC used in the plastic industry stands for______________
(A) Phosphavinyl chloride
(B) Phosphor vanadiu chloride
(C) Polyvinyl chloride
(D) Polyvinyl carbobate
Oil of vitriol is_________
(A) Nitric acid
(B) Hydrochloric acid
(C) Phosphoric acid
(D) Sulfuric acid
Calcium sulphate is known as__________
(A) Epsom salt
(B) Gypsum salt
(C) Blue vitriol
(D) Potash alum
Epsom salt is chemically known as_________
(A) Copper Sulfate
(B) Magnesium Sulfate
(C) Ferrous Sulfate
(D) None of these
Which of the following animals does not have nervous system
(A) Bat
(B) Squirrel
(C) Sponges
(D) Lizard
Which lenses are used by people having short_sightedness
(A) Convex
(B) Concave
(C) Concavo-convex
(D) Plain
Who first discovered how blood circulates in the human body
(A) Edward Jenner
(B) Joseph Lister
(C) William Harvey
(D) Gregor Mendel
Name the animal which can do without water in its entire life
(A) Desert lizard
(B) Camel
(C) Kangaroo rat
(D) Cuttlefish