Paper: CSIR-NET June 2017 · Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Phosphazenes Sn Compounds · Marks: 2 · Difficulty: Medium
Both potassium and sulfuric acid form intercalation compounds with graphite. The graphite layers are
(a)reduced in both the cases
(b)oxidized in both the cases
(c)oxidized in the case of potassium and reduced in the case of sulphuric acid
(d)reduced in the case of potassium and oxidized in the case of sulphuric acid
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Potassium donates electrons to the layers (KC₈, graphite reduced); H₂SO₄ intercalation forms C₂₄⁺HSO₄⁻ (graphite oxidised).