JEE Advanced 2022 · Paper 2 · Chemistry Q16

ChemistrySingle correct+3 / -1Question 52 of 54

The reaction of $\ce{HClO3}$ with HCl gives a paramagnetic gas, which upon reaction with $\ce{O3}$ produces

\ce{Cl2O}

\ce{ClO2}

\ce{Cl2O6}

\ce{Cl2O7}

Answer and worked solution

Official answer: C

The paramagnetic gas. Chlorate and HCl give $\ce{ClO2}$ , which has an odd electron:
$\ce{2HClO3 + 2HCl -> 2ClO2 + Cl2 + 2H2O}.$

With ozone.
$\ce{2ClO2 + 2O3 -> Cl2O6 + 2O2}.$
(C).

JEE Advanced 2022 · Paper 2, Chemistry question 16