Advertisements
Advertisements
Question
How would you account the following :
Transition metals and their compounds show catalytic properties.
Advertisements
Solution
The catalytic activity of transition metals and their compounds can be explained by two basic facts:
1. Owing to their ability to show variable oxidation states and form complexes, transition metals form unstable intermediate compounds. Thus, they provide a new path with lower activation energy, Ea, for a reaction.
2. Transition metals also provide a suitable surface for reactions to occur.
APPEARS IN
RELATED QUESTIONS
Write the major products(s) in the following:

How will you bring about the following conversion?
Benzene to biphenyl
How the following conversion can be carried out?
Benzene to diphenyl
Chlorobenzene is prepared commercially by:
Match the reactions given in Column I with the names given in Column II.
| Column I | Column II | |
| (i) | ![]() |
(a) Fittig reaction |
| (ii) | ![]() |
(b) Wurtz Fittig reaction |
| (iii) | ![]() |
(c) Finkelstein reaction |
| (iv) | \[\ce{C2H5Cl + Nal ->[dry acetone] C2H5l + NaCl}\] | (d) Sandmeyer reaction |
Assertion: tert-Butyl bromide undergoes Wurtz reaction to give 2, 2, 3, 3-tetramethylbutane.
Reason: In Wurtz reaction, alkyl halides react with sodium in dry ether to give hydrocarbon containing double the number of carbon atoms present in the halide.
Write balanced equations for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Explain why Grignard reagents should be prepared under anhydrous conditions?
Which one is most reactive towards SN1 reaction?
In the following reaction
\[\begin{array}{cc}
\phantom{}\ce{\underset{}{C6H5CH2Br} ->[1. Mg, Ether][2. H3O+] \underset{}{X}}\\
\end{array}\],
the product 'X' is



