- (A) Ethyl alcohol
- (B) Impurities
- (C) Methyl alcohol
- (D) Carbonic acid
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- (A) Extrusion
- (B) Mastication
- (C) Calendaring
- (D) Vulcanisation
- (A) Reduction
- (B) Roasting
- (C) Calcination
- (D) Smelting
- (A) 7-14 and 14-30
- (B) 7-14 and 40-50
- (C) 14 – 30 and 40-50
- (D) 10 – 20 and 40 – 50
- (A) Gives an idea about its molecular weight
- (B) Is inversely proportional to its molecular weight
- (C) Detects its adulteration
- (D) All A ,
- (A) Aeration of water is effective in CO2 removal
- (B) The zeolite water softening process reduces the hardness of water by not more than 50%
- (C) Sodium sulphate or sodium carbonate do not cause hardness in water
- (D) Water with pH value less than 7, is acidic
- (A) 0.14
- (B) 0.34
- (C) 0.94
- (D) 1.4
- (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate
- (B) Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide
- (C) Ordinary glass is represented chemically by Na2O . CaO . 6SiO2
- (D) Red color is imparted to glass by addition of arsenic oxide
- (A) Trichloroethylene
- (B) Vinyl chloride
- (C) Ethanol amine
- (D) Ethylene oxide
- (A) Adsorbs
- (B) Oxidises
- (C) Reduces
- (D) Converts
