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Question

Which type of metals form effective catalysts?

A
Alkali metals
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B
Transition metals
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C
Alkaline earth metals
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D
Radioactive metals
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Solution

The correct option is D Transition metals
Transition metals are more effective catalysts on account of their larger surface area and half-filled and partially filled nature of penultimate d-subshells.

Also, they are more effective due to their variable valency.

Option B is correct.

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