A. CaO
B. MnO2
C. ZnO
D. FeS
Correct Answer: ZnO ✔
Last Updated: February 14, 2019
Related MCQs
- 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 ?
- Pick out the wrong statement ?
- 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?