Starting material for the commercial production of ethyl alcohol in India is
Rice
Molasses
Fruit of Mahua tree
Maize
Correct Answer :
B. Molasses
Related Questions
Rancidity of the fatty oil can be reduced by its
Decoloration
Hydrogenation
Oxidation
Purification
Pick out the wrong statement.
Pasteurisation of milk involves moderate heating followed by cooling
Bakeries and breweries make use of yeasts
Enzyme is a complex nitrogenous compound
Oils and fats are alkaloids
The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is
Alumina
Silica gel
Platinum
Nickel
Glass is
Mainly CaO
Subjected to galvanising
A super cooled liquid
All (A), (B) and (C)
A good quality coal should have
Low fusion point of ash
High ash content
High sulphur content
None of these
Sulphuric acid is mainly used in the __________ industry.
Fertiliser
Steel
Paper
Paint
Magnesium and calcium __________ cause temporary hardness of water.
Carbonates
Bicarbonates
Phosphates
Sulphates
Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.
75
< 10
> 30
50
Nicotine is
A volatile alkaloid
Obtained by treating by-products of the tobacco processing industry
Both (A) and (B)
Neither (A) nor (B)
The main component of Pyrex glass is
Zinc
Lead
Boron
Selenium
The purpose of tanning in leather industry is to
Stiffen the leather
Smoothen the leather
Make it flexible
Impart water resistance
Which of the following has sodium bicarbonate as its main constituent?
Baking soda
Baking powder
Washing soda
None of these
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
Diamine and the ring
Dibasic acid and the ring
Diamine and the dibasic acid
None of these
Hydrolysis of sugar is called
Hydration
Inversion
Esterification
None of these
Sodium carbonate (soda ash) is not used in the manufacture of
Fire extinguishers
Sugar
Baking powder
Detergents
Saponification number of an oil or fat
Gives an idea about its molecular weight
Is inversely proportional to its molecular weight
Detects its adulteration
All (A), (B) & (C)
Potassium is kept & transported under
Water
Liquid ammonia
Kerosene oil
Alcohol
Manufacture of phthalic anhydride uses __________ as a catalyst.
Ni
Cr
V2O5
Al2O3
Grignard reagent is chemically known as
Ethyl magnesium chloride
Methyl magnesium chloride
Dichlorophenol
Monochloroacetic acid
Celluloid is chemically
Cellulose acetate
Regenerated cellulose
Cellulose nitrate
Cellulose acetate butyrate
Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is
0.14
0.34
0.94
1.4
Nitric acid is not used in the manufacture of
Detergents
Fertilisers
Aqua regia
Explosives
__________ iron is the purest form of iron.
Cast
Wrought
Pig
High silicon
An oil is converted into fat by its
Hydrogenation
Hydrolysis
Hydrocracking
Hydration
Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?
Depithing
Digestion
Bleaching
None of these
Sea water contains about __________ ppm of bromine.
5
70
500
1700
Viscose rayon is
Cellulose nitrate
Regenerated cellulose nitrate
Regenerated cellulose acetate
None of these
Transparent soaps (e.g. Pears) are
Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency
Metallic soaps with frothing agent and free Stearic acid to achieve transparency
Metallic soaps with frothing agent from which glycerine has not been recovered
None of these
Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.
10
50
80
95
Phenol is mainly used
To produce benzene
To produce phenol formaldehyde
To produce polyester resin
As a plasticiser for unsaturated polyester