Chemical Process Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement? Stearic acid Xanthates Calcium & aluminium stearate Formic acid Stearic acid Xanthates Calcium & aluminium stearate Formic acid ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is Dilute H₂SO₄ Oleum None of these Ultraviolet light Dilute H₂SO₄ Oleum None of these Ultraviolet light ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The drug used in contraceptives is Sulphadizene Pencillin Mestranol Methyl salicylate Sulphadizene Pencillin Mestranol Methyl salicylate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C. -5 to 0 75 to 80 5 to 10 30 to 50 -5 to 0 75 to 80 5 to 10 30 to 50 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fermentation is adversely affected by the Absence of air Presence of ammonium salts Presence of air High concentration Absence of air Presence of ammonium salts Presence of air High concentration ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is an yellow pigment? Ferrous sulphate Zinc sulphides Titanium dioxide Lead chromates Ferrous sulphate Zinc sulphides Titanium dioxide Lead chromates ANSWER DOWNLOAD EXAMIANS APP
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