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JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
Potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride, gives brown-red vapours of:
- A \(CrO3\)
- B \(CrCl_3\)
- C \(CrO_2Cl_2\)
- D \(Cr_2O_3\)
Answer & Solution
Correct Answer
(C) \(CrO_2Cl_2\)
Step-by-step Solution
Detailed explanation
Solid potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride gives orange red vapours of a volatile oily liquid \(Cr{O_2}C{l_2}\) \(K_2Cr_2O_7 + 4NaCl + 6H_2SO_4\) \(\longrightarrow\)…
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