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JEE MAIN 2022

27-07-2022 S1

Question

The incorrect statement is

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The first ionization enthalpy of K is less than that of Na and Li

Xe does not have the lowest first ionization enthalpy in its group

The first ionization enthalpy of element with atomic number 37 is lower than that of the element with atomic number 38.

The first ionization enthalpy of Ga is higher than that of the d-block element with atomic number 30.

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Ionization enthalpy order : $$ \begin{aligned} & \mathrm{Li}>\mathrm{Na}>\mathrm{K} \\ & \mathrm{He}>\mathrm{Ne}>\mathrm{Ar}>\mathrm{Kr}>\mathrm{Xe}>\mathrm{Rn} \\ & \mathrm{Sr}>\mathrm{Rb} \\ & \mathrm{Zn}>\mathrm{Ga} \end{aligned} $$

Question Tags

JEE Main

Chemistry

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