SATHEE: Some Basic Concepts Of Chemistry Question 72

Some Basic Concepts Of Chemistry Question 72

Question: 2g of a mixture of CO and $C O_{2}$ on reaction with excess $I_{2} O_{5}$ produced 2.54 g of $I_{2}$ . What will be the mass % of $C O_{2}$ in the original mixture?

Options:

A) 35

B) 70

C) 30

D) 60

Show Answer

Answer:

Correct Answer: C

Solution:

[c] $5 C O + I_{2} O_{5} \to 5 C O_{2} + I_{2}$ Moles of $I_{2} O_{5} = \frac{25.4}{254}$ $= 0.01 = 0.05 m o l e s o f C O$ Weight of $C O = 0.05 \times 28 = 1.4 g;$ Weight of $C O_{2} = 2 - 1.4 = 0.6 g$ Hence % of $C O_{2} = \frac{0.6}{2} \times 100 = 30$ %

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Some Basic Concepts Of Chemistry Question 72

Question: 2g of a mixture of CO and CO2 on reaction with excess I2O5 produced 2.54 g of I2 . What will be the mass % of CO2 in the original mixture?

Options:

Answer:

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Question: 2g of a mixture of CO and $C O_{2}$ on reaction with excess $I_{2} O_{5}$ produced 2.54 g of $I_{2}$ . What will be the mass % of $C O_{2}$ in the original mixture?