JEE MAIN - Chemistry (2024 - 4th April Evening Shift - No. 7)

The correct order of the first ionization enthalpy is

$$\mathrm{Ga}>\mathrm{Al}>\mathrm{B}$$

$$\mathrm{Tl}>\mathrm{Ga}>\mathrm{Al}$$

$$\mathrm{Al}>\mathrm{Ga}>\mathrm{Tl}$$

$$\mathrm{B}>\mathrm{Al}>\mathrm{Ga}$$

I. $$\mathrm{E}_1$$ of $$\mathrm{TI}=589 \mathrm{~kJ} / \mathrm{mol}$$

I. $$\mathrm{E}_1$$ of $$\mathrm{Ga}=579 \mathrm{~kJ} / \mathrm{mol}$$

I. $$\mathrm{E_1}$$ of $$\mathrm{Al}=577 \mathrm{~kJ} / \mathrm{mol}$$