MHT CET Chemistry question

Chemistry The d and f-Block Elements MHT CET

All the following statements about the transitional elements are TRUE except that [Kerala (Med.) 2003]

(A)All of the transitional elements are predominantly metallic
(B)In aqueous solution many of their simple ions are coloured
(C)Most of the transitional elements show pronounced catalytic activity
(D)Most of the transitional elements show only one valence stateCorrect

Answer: (D)

Solution

Transition elements show variable valency (several oxidation states), so (d) is

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Question ID VK-074765