A. Blue vitriol
B. Gypsum
C. Calcium silicate
D. Calcium sulphate
Correct Answer: Gypsum ✔
Last Updated: February 14, 2019
Related MCQs
- Which of the following is used as a binding material in soap to improve soap texture ?
- Glauber’s salt is chemically represented by__________?
- Main constituents of Portland cement are calcium aluminate and__________?
- The purpose of adding Na2CO3 to water of low alkalinity is to__________?
- Zeolite used in water softening process (cation exchange) is regenerated by washing with__________?
- The product obtained on mixing calcium oxide with water is called __________?
- Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement ?
- Sodium salt of higher molecular weight fatty acid is termed as the __________ soap?
- Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction__________?
- Hydrazine is largely used__________?
- Vulcanisation of rubber__________?
- How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln ?
- __________ is produced using molasses as the starting raw material ?
- Acetone is produced by catalytic dehydrogenation of__________?
- In the production of soda ash by Solvay process, the by-product is__________?
- __________ is used as a catalyst in fat splitting ?
- Trinitrotoluene (TNT), an explosive, is made by the nitration of __________?
- With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide__________?
- Coal tar is used as a__________?
- Comparing sulphate process with sulphite process, we find that __________ in the later ?
- Litharge is__________?
- Dacron is a/an __________?
- Brackish water which contains mostly dissolved salt, can be purified by the __________ process?
- High acid value of an oil or fat is an indication of __________?
- Glycerine is not used in the__________?
- Which form of sulphur is the most stable at room temperature ?
- During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to__________?
- Which of the following is not a food additive ?
- Production of alcohol by fermentation of molasses is a/an __________ process?
- Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the__________?
- The major constituents of glass are__________?
- Aryl benzene sulphonate (ABS) is a__________?
- __________ is the major constituent of the Portland cement?
- Polythene is a/an __________ polymerisation product?
- The ideal pulp for the manufacture of paper should have high __________ content?
- Chemical name of ‘alum’ is__________?
- Sodium carbonate (soda ash) is not used in the manufacture of__________?
- A ‘unit process’ is exemplified by the__________?
- The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by__________?
- Alum is commercially produced from__________?
- In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________?
- Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at __________?
- Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent?
- Styrene is produced from ethyl benzene by the process of__________?
- Calcination of gypsum produces__________?
- Which is the most efficient absorbent for SO3 out of the following ?
- DDT should not be allowed to come in contact with iron (during its manufacture) to __________?
- __________ are added in lacquers to remove film brittleness and to improve adhereness?
- 10% oleum comprises of 10% free__________?
- The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is __________?
- Catalyst used in the hydrogenation of oil is__________?