The Student Room Group

Chemistry question help

1) Why are some elements in the d block poor heterogeneous catalysts? Give specific examples.

2) State 3 characteristic features of a catalyst.

3) Write an overall equation for the reaction of cyclohexene with hydrogen. And by stating a reagant and observation, give a chemical test which would show that this hydrogenation has gone to completion.

4) What feature of rhodium allows this catalyst to function?

ANY help at all please. I'm really confused.
Marykate5
1) Why are some elements in the d block poor heterogeneous catalysts? Give specific examples.

2) State 3 characteristic features of a catalyst.


1) heterogeneous catalysts act as templates and requires empty orbitals for other species to bind to...


2)
1. speed up the reaction
2. can be recovered unchanged at the end of the reaction
3. beats me.. maybe can be poisoned?!
3. beats me.. maybe can be poisoned?!

I think it will be " providing an alternative route reaction with lower activation energy" ^^
prettyboy_bn
I think it will be " providing an alternative route reaction with lower activation energy" ^^

sounds good to me...

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