Which of the following coals has the highest calorific value?
Lignite
Sub-bituminous
Anthracite
Peat
- Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air…
- Acrylonitrile is mainly used in the __________ industry.
- Zeolite is a/an
- Fish contains about __________ percent oil.
- The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is
- Which of the following is a constituent of coffee?
- Production of alcohol by fermentation of molasses is a/an __________ process.
- __________ is the major constituent of the Portland cement.
- Viscose rayon is chemically
- 20% oleum means that in 100 kg oleum, there are 20 kg of
- Which of the following is a disaccharide?
- Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled…
- Conversion of CO to CO2 by steam in presence of a catalyst is called
- Permanent hardness of water can be removed by
- Carboxymethyl cellulose (CMC) is added in detergents to
- Low temperature carbonisation of coal takes place at __________ °C.
- Dehydrogenation of ethyl benzene produces
- Blue vitriol is chemically
- In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
- Lubricating greases are a mixture of
- The purpose of tanning in leather industry is to
- __________ process is used for the commercial production of nitric acid by the catalytic oxidation of…
- Hydrazine (N2H4) is used mainly as a/an
- Production of one ton of cement requires about __________ tons of limestone.
- Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove
- Which of the following, when pyrolysed, produces Perchloroethylene?
- Styrene is produced from ethyl benzene by the process of
- Starting raw material for the manufacture of alum is
- Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
- Styrene-butadiene-rubber (SBR) as compared to natural rubber has