Chemical Process Which of the following is not responsible for causing permanent hardness of water? None of these CaCl₂ MgCl₂ Ca(HCO₃)₂ None of these CaCl₂ MgCl₂ Ca(HCO₃)₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Temporary hardness of water can be removed by Addition of lime Addition of alum (a coagulant) Filtration (through gravity sand filter) Boiling Addition of lime Addition of alum (a coagulant) Filtration (through gravity sand filter) Boiling ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chemical name of aspirin (an analgesic drug) is Nictonic acid Calcium acetate Acetylsalicylic acid Methyl salicylate Nictonic acid Calcium acetate Acetylsalicylic acid Methyl salicylate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Kopper-Totzek coal gasifier Is a moving bed reactor Cannot use coking coal Can give ammonia synthesis gas (H₂ + N₂) Operate at very high pressure Is a moving bed reactor Cannot use coking coal Can give ammonia synthesis gas (H₂ + N₂) Operate at very high pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Conversion of SO₂ to SO₃ in Monsanto 4-pass converter is about __________ percent. 80 100 90 98 80 100 90 98 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Main constituent of limestone is CaCO₃ CaSO₄ Na₂CO₃ MgCO₃ CaCO₃ CaSO₄ Na₂CO₃ MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
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