(A) Mustard oil
(B) Sunflower oil
(C) Coconut oil
(D) Groundnut oil
LPG is a hydrocarbon consisting of a mixture of?
(A) Ethane and Propane
(B) Ethane and Butane
(C) Propane and Butane
(D) Methane and Butane
PVC is obtained by the polymerisation of?
(A) Vinyl Chloride
(B) Propane
(C) Styrene
(D) Acetylene
Saccharin is made up of?
(A) Propane
(B) Phenol
(C) Toluene
(D) Butane
Which of the following type of the coal has the lowest proportion of volatile matter?
(A) Bituminous
(B) Peat
(C) Lignite
(D) Anthracite
Element required for solar energy conversion is?
(A) Silicon
(B) Ultra pure carbon
(C) Tantalum
(D) Beryllium
Diamond is harder than graphite because?
(A) Tetrahedral structure of diamond
(B) Difference of Crystalline structures
(C) Difference in layers of atoms
(D) None of the above
Ratio of pure Gold in 18 carat gold is?
(A) 60%
(B) 75%
(C) 80%
(D) 90%