Parathion and Malathion are
Hydrazine is largely used
Liquefaction of gases can not be done by
Use of chlorine in the treatment of sewage
Systemic insecticides
RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically
Coke oven gas consists mainly of
Thorium is mainly used
During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to
How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?
Catalyst used in the hydrogenation of oil is
Viscose rayon is
During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as
Transparent soaps (e.g. Pears) are
'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.
Dry ice (solidified CO2) is used for the
Chemical name of 'alum' is
Good quality of edible salt is obtained from brine by the process of
Cement setting under water employs a/an __________ process.
Triple superphosphate is manufactured by reacting
In nylon- the first and second numbers (i.e., respectively designate the number of carbon atoms present in the
Which of the following fuel gases contains maximum amount of carbon monoxide ?
Electric bulbs are made of __________ glass.
Which of the following is the main constituent of the mother liquor produced in salt industry ?
Which form of sulphur is the most stable at room temperature ?
Which of the following is used as a binding material in soap to improve soap texture ?
Silicon carbide is a/an
Chemical formula of BHC, which is an insecticide is
Vegetable oils and fats basically differ in their
An alkali metal salt of palmitic acid is known as
Oxygen is produced by fractionation of air using __________ process.
A bio-catalyst produced by living cells which acts independent of the cell is called a/an
Average sulphur content in Indian pyrites is about __________ percent.
Washing soda is chemically represented by
Trinitrotoluene (TNT), an explosive, is made by the nitration of
Pick out the wrong statement.
Oil is a/an
Magnesium and calcium __________ cause temporary hardness of water.
Which of the following is used as a coagulant in treating turbid water ?
The product obtained on mixing calcium oxide with water is called
Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.
Which of the following contains least amount of N2 ?
Which of the following is a constituent of coffee ?
The major constituent of black liquor generated during paper manufacture is sodium
In the Solvay process, the product from the calciner is
Pick out the wrong statement.
A unit operation is exemplified by the process of
__________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace.
Tall oil obtained as a by-product from the black liquor recovery is