Chem Mantra
⚗️ Chem-MantraJEE Mains Chemistry →
Qualitative and Quantitative AnalysismediumMCQ SINGLE

Which of the following pairs of cations can be separated by passing H2S through the mixture in the p — Qualitative and Quantitative Analysis Chemistry Question

Question

Which of the following pairs of cations can be separated by passing H2S through the mixture in the presence of 0.2 M HCl?

Answer: D

💡 Solution & Explanation

Cu2+ (Group II) precipitates as CuS in acidic medium (0.2 M HCl). Zn2+ (Group IV) remains in solution and only precipitates as ZnS in alkaline medium.

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full JEE Mains Chemistry content — all in one place.

Explore Courses →Free on YouTube

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry