Chemistry - Complete d-block Question with Solution | TestHub
Questions given below consist of two statements each printed as Assertion (A) and Reason (R); while answering these questions you are required to choose any one of the following four responses:
Assertion: K₂CrO₄ has a yellow colour due to charge transfer.
Reason: CrO₄²⁻ ion is tetrahedral in shape.
Options:
Answer:
Solution:
Explain the question :
Question is asking to evaluate an assertion and reason for the properties of potassium chromate.
Concept:
This question is based on origin of color and molecular shape.
Solution:
Explanation: While both statements are individually true, the shape of the ion (Reason) does not explain the origin of its color (Assertion). The color is explained by its electronic structure (d0 configuration), not its geometry.
K2CrO4 is yellow in colour due to charge transfer from oxygen to Cr6+ ,
In CrO₄²⁻ : Hyb : d3s
Shape : Tetrahedral
Final Answer: A