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Q.

50 milliliters of CO is mixed with 20 mL of oxygen and sparked. After the reaction, the

mixture is treated with an aqueous KOH solution. Choose the correct answer option. 

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a

The volume of the CO that reacts = 40 mL                     

b

The volume of the CO2 formed = 40 mL

c

The volume of the CO that remains after treatment with KOH = 10 mL

d

The volume of the CO that remains after treatment with KOH = 20 mL

answer is A, B, C.

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Detailed Solution

The reaction is 2CO(g)2 Vol40.0 mL + O2(g)1 Vol20.0 mL2CO2(g)2 Vol40.0 mL

Volume of CO(g) that reacts = 40.0 mL

Volume of CO2(g) formed = 40.0 mL

Volume of CO(g) removed after treatment with KOH = 50mL – 40mL = 10.0mL 

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