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(i) What type of hybridisation occur in 1. BrF_(5) 2. BrF_(3) (ii) Most of the transition metals act as catalyst. Justify this statement. |
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Answer» Solution :(i) 1. `BrF_(5)` is a `AX_(5)` type. Therefore is has `sp^(3)d^(2)` hybridisation. Hence, `BrF_(5)` molecule has square pyramidal shape. 2. `BrF_(3)` is a `AX_(3)` type. Therefore it has `sp^(3)d` hybridisation. Hence, `BrF_(3)` molecule has T-shape. (ii) `*` Many industrial PROCESSES use TRANSITION metals or their compounds as catalysts. Transition metal has energetically available d orbitals that can accept electrons from reactant molecule or metal can form BOND with reactant molecule using its .d. electrons. `*` For example, in the catalytic hydrogenation of an alkene, the alkene BONDS to an active site by using its `pi` electrons with an empty d orbital of the catalyst. |
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