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Question

Iodine (I2) reacts with Concentrated Nitric acid(HNO3)to give:


A

HI

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B

HOIO2

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C

HOIO3

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D

All Of These

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Solution

The correct option is B

HOIO2


Explanation for the Correct Option:

Option (B):HOIO2

  • The Iodine reacts with concentrated Nitric acid(HNO3) it giving Iodic acid (HOIO2)or(HIO3).
  • Here, Nitric acid(HNO3), being the strong oxidizing agent oxidizes Iodine to form Iodic acid (HOIO2)or(HIO3).
  • The balanced chemical equation for the above reaction can be given as:
  • I2(s)Iodine+10HNO3(aq)Nitricacid2HOIO2(aq)Iodicacid+10NO2Nitrogendioxide+4H2O(l)Water

Explanation for the incorrect Option:

Option (A): HI

  • Iodine on reaction with concentrated Nitric acid(HNO3) doesn't give as the product.
  • Hence, the given Option is an incorrect one.

Option (C):HOIO3

  • When Iodine reacts with concentrated Nitric acid(HNO3) the reaction does not give HOIO3as the product.
  • Hence, this Option given here does not represent the correct concept.

Hence, Iodine (I2) reacts with Concentrated Nitric acid(HNO3)to give: HOIO2.


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