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(Multiple choice questions 1. CO turns lime water milky because .............A. calcium hydroxide is formed B. Calcium oxide is formedC. Calcium carbonate is formed D. Calcium sulphate is formed2. Molecular mass of CO is ............A. 3B. 14 C. 48 D. 44.............is not a property of carbon dioxide.A. Combustibility B. Heavier than air C. Soluble in water D. Odourless4. Dry ice is obtained from CO, at ............temperature.A. OB. -56.6C. -78.5D. -109.35. The Statement ............is wrong regarding the use of CO,A. Ecofriendly drycleaningB. removal of caffene from coffeeC. Fire extinguisherD. Purificants in petroliumQuestionsWhat are the uses of co in everyday life?​

Answer»

1 C) calcium CARBONATE is FORMED2 if it is CO2 then the answer is d) 44,    but if it is CO , then the answer will be 283) a) combustibility4 c) -78.5Explanation:



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