What is NOT true about K₂Cr₂O₇?
Correct answer: A. Blue crystalline solid
- A. Blue crystalline solid
- B. Not soluble in water
- C. Strong oxidizing agent
- D. Used in formation of lead chromate
Explanation
Potassium dichromate (K₂Cr₂O₇) is a bright orange crystalline solid, not blue.It is a strong oxidizing agent, meaning it readily accepts electrons from other substances.It is soluble in water, forming a solution that is also orange.Potassium dichromate is used in the formation of lead chromate (PbCrO₄), which is a yellow pigment.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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