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Which of the following does not represent the correct order of the property indicated?
(a)ionic radii.
(b) density.
(c) ionic radii.
(d) basic nature,

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Important Questions on The d- and f-Block Elements
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(At.nos.

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Assertion: For hydrogenation reactions, the catalytic activity increases from Group to Group metals with maximum activity shown by Group elements.
Reason: The reactants are most strongly adsorbed on group elements.

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(Atomic Number of )

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Catalyst | Process | ||
A. | i. | Wacker process | |
B. | ii. | Ziegler – Natta polymerisation | |
C. | iii. | Contact process` | |
D. | iv. | Deacon’s process |

