The number of alkali metal(s), from Li, K, Cs, Rb having ionization enthalpy greater than 400 ~kJ mol⁻¹ and forming stable super oxide is _ _ _ _ _ _ _.

S Block Elements: JEE Main 2023 Chemistry question

JEE Main 2023 · 31 Jan, Evening shift · Q16

JEE Main 202331 Jan, Evening shiftChemistryMediumS Block Elements86× since 2002

The number of alkali metal(s), from

\mathrm{Li}, \mathrm{K}, \mathrm{Cs}

, Rb having ionization enthalpy greater than

400 \mathrm{~kJ}

\mathrm{mol}^{-1}

and forming stable super oxide is _____________.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2023 S Block Elements Question with Answer (31 Jan Evening shift, Q16) | JEE Arc