Month: February 2019

A. Butyl alcohol
B. Propyl alcohol
C. Ethanol
D. Methyl alcohol

A. Sulphur
B. Charcoal
C. Potassium nitrate
D. All A , B, & C.

A. Phosphate rock with phosphoric acid
B. Phosphate rock with sulphuric acid
C. Phosphate rock with nitric acid
D. Ammonium phosphate with phosphoric acid

A. 15
B. 35
C. 55
D. 70

A. Bakelite
B. Teflon
C. Celluloid
D. Dacron

A. Carbon, hydrogen, nitrogen & sulphur
B. Carbon, ash, sulphur & nitrogen
C. Carbon, sulphur, volatile matter & ash
D. Carbon, volatile matter, ash & moisture

A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
B. Inhibits its corrosive effects
C. Does not allow redeposition of dirt on the cleaned surface
D. None of these

A. Distillation
B. Dehydration
C. Dehydrogenation
D. None of these

A. Perspex
B. Nylon-66
C. Polystyrene
D. Bakelite

A. 10
B. 40
C. 70
D. 85