(A) Quartz
(B) Gypsum
(C) Feldspar
(D) Fluorite

(A) Acidic refractory
(B) Rubber
(C) Karbate
(D) Lead or acid-proof bricks

(A) Mica flakes
(B) Glass
(C) Rubber
(D) None of these

(A) 3.8
(B) 5.2
(C) 4.8
(D) 4.3

(A) Surgical instruments
(B) Powerful magnets
(C) Chemical equipments
(D) Boiler tubes

(A) Used for making shock resisting parts
(B) Manufactured in cupola and is brittle
(C) Having compressive strength more than its tensile strength
(D) All (A), (B) & (C)

(A) Acetic acid
(B) Benzoic & boric acids
(C) Phosphoric acid (95%) & sulphuric acid (95%)
(D) Hydrochloric acid (concentrated)

(A) Polybutadiene
(B) Phenol formaldehyde
(C) Urea-formaldehyde
(D) Dacron

(A) Pig iron
(B) Mild steel
(C) Wrought iron
(D) High carbon steel

(A) More corrosion resistant
(B) Having higher melting point
(C) Having lower hardness, reactivity and fusibility
(D) Having lower electrical conductivity