In which of the following equilibria, K p and K c are NOT equal?

1. A. PCl5(g) <=> PCl3(g) + Cl2(g)
2. B. H2(g) + I2(g) <=> 2HI(g)
3. C. CO(g) + H2O(g) <=> CO2(g) + H2(g)
4. D. 2BrCl(g) <=> Br2(g) + Cl2(g)

Attempt this NEET 2024 Chemistry question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.