Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture?
More than 100 percent of __________ is present in oleum?
Which of the following is not an abrasive material ?
Black liquor is converted into white liquor by __________?
Roasting of metallurgical ores is done mainly to __________?
Thermosetting materials __________?
Silicone is a/an __________?
Liquor poisoning generally occurs due to the presence of __________ in it ?
The process involved in converting rubber into a thin sheet or coating it on fabric is called __________?
Sulphur removal by heating of pyrite ore in presence of air is called its __________?
Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent ?
Saponification number of an oil or fat__________?
Coke used for the production of calcium carbide should have__________?
The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction?
H2S is scrubbed from refinery gases by absorption using __________?
Pasteurisation of milk means__________?
Sucrose is a disaccharide consisting of__________?
All enzymes are made of__________?
Essential oils are usually obtained using__________?
Which of the following is an organometallic compound ?
Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of__________?
__________ is not a constituent of gun powder?
Resistance to fusion of the refractory under a steady rising temperature condition is called __________ ?
Cumene (isopropyl benzene) is made by __________?
Setting of plaster of Paris is accompanied with__________?
Vanillin is a type of__________?
Polycaprolactam is commercially known as__________?
Zeolite is a/an__________?
Which one of the following is not likely to be a constituent of vegetable oils ?
Nickel is not used as a catalyst in the __________ reaction ?
Main constituent of dolomite is __________?
Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove__________?
Alcohol is produced by the__________?
Which of the following is an endothermic reaction ?
Hydrogenation of edible vegetable oils__________?
Pick out the wrong statement. Iodine value of an oil or fat is__________?
__________ process is used for the manufacture of sodium carbonate by ammonia soda process?
Analgesic drugs are__________?
Neoprene is the trade name of__________?
Cellulose percentage in bamboo fibre is about__________?
Claude process of gas liquefaction employs__________?
In the Lurgi coal gasifier__________?
Cement mainly contains__________?
Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C?
Function of sodium thiosulphate (hypo) in development of photographic film/plate is to__________?
Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and__________?
Neoprene is chemically known as__________?
Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of__________?
Fermentator temperature during production of alcohol from molasses is around __________ °C?
Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda ?
Raw materials used for producing __________ cement does not contain iron oxide?

Pick out the wrong statement ?

A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol
B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring
C. Raw materials for DDT manufacture are benzene and chlorine
D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

Correct Answer: Raw materials for DDT manufacture are benzene and chlorine ✔

Last Updated: February 14, 2019