JEE Main 2026 Chemistry question
The correct order of first (Δ_iH₁) and second (Δ_iH₂) ionisation enthalpy values of Cr and Mn are: A. Δ_iH₁: Cr>Mn B. Δ_iH₂: Cr>Mn C. Δ_iH₁: Mn>Cr D. Δ_iH₂: Mn>Cr Choose the correct answer from the options given below:
Answer: (B)
Solution
First ionisation enthalpies: Cr 653 kJ/mol < Mn 717 kJ/mol, so Mn>Cr (C). Second: Cr⁺ has the stable
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