On analysis, a certain compound was found to contain iodine and oxygen in the ratio of 254 g of iodine and 80 g of oxygen. The atomic mass of iodine is 127 and that of oxygen is 16. Which of the following is the formula of the compound?

Question

On analysis, a certain compound was found to contain iodine and oxygen in the ratio of 254 g of iodine and 80 g of oxygen. The atomic mass of iodine is 127 and that of oxygen is 16. Which of the following is the formula of the compound? (A) IO (B) I2O (C) I5O2 (D) I2O5

Tardigrade Admin · Accepted Answer

Compound has 254 g of I2 mean (254/127) = 2 moles, while 80 g O2 means (80/16) = 5 moles so they will form compound I2O5.

Q. On analysis, a certain compound was found to contain iodine and oxygen in the ratio of $254 g$ of iodine and $80 g$ of oxygen. The atomic mass of iodine is $127$ and that of oxygen is $16$ . Which of the following is the formula of the compound?

$I O$

$I_{2} O$

$I_{5} O_{2}$

$I_{2} O_{5}$

Compound has $254 g$ of $I_{2}$ mean $\frac{254}{127} = 2$ moles, while $80 g O_{2}$ means $\frac{80}{16} = 5$ moles so they will form compound $I_{2} O_{5}$ .

Q. On analysis, a certain compound was found to contain iodine and oxygen in the ratio of 254g of iodine and 80g of oxygen. The atomic mass of iodine is 127 and that of oxygen is 16. Which of the following is the formula of the compound?

IO

I2​O

I5​O2​

I2​O5​