JEE Main 12 Jan 2019 Morning Question 16

Question: Iodine reacts with concentrated $ HNO _3 $ to yield Y along with other products. The oxidation state of iodine in Y, is [JEE Main Online Paper Held On 12-Jan-2019 Morning]

Options:

A) 5

B) 1

C) 7

D) 3

Show Answer

Answer:

Correct Answer: A

Solution:

  • $ \underset{Conc.}{\mathop{I _2+10HNO _3}},\to \underset{(Y)}{\mathop{2HIO _3}},+10NO _2+4H _2O $ Let oxidation state of I be x $ +1+x+3(-2)-0 $ $ x=+5 $