Chemical Process Presence of carbonaceous matter in the sewage Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures Increases the quantity of chlorine used for its purification Reduces sulphate ions to sulphides causing obnoxious smell All of these Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures Increases the quantity of chlorine used for its purification Reduces sulphate ions to sulphides causing obnoxious smell All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which is the most efficient absorbant for SO₃ out of the following? 98%H₂SO₄ 78%H₂SO₄ 20% oleum 65% oleum 98%H₂SO₄ 78%H₂SO₄ 20% oleum 65% oleum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant. Pyrex Lead Soda lime High silica Pyrex Lead Soda lime High silica ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Liquor poisoning generally occurs due to the presence of __________ in it. Carbonic acid Ethyl alcohol Impurities Methyl alcohol Carbonic acid Ethyl alcohol Impurities Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sugar content in sugarcane on cane basis is about __________ percent by weight. 15 to 20 20 to 30 1 to 5 5 to 10 15 to 20 20 to 30 1 to 5 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Bromine is used in the preparation of Fire extinguishing compounds Fire proofing agents Dyes and antiknock compounds All of these Fire extinguishing compounds Fire proofing agents Dyes and antiknock compounds All of these ANSWER DOWNLOAD EXAMIANS APP
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