List of top Chemistry Questions on d block elements asked in UP Board XII

Write four characteristics of transition elements.

Answer the following: (i) How do the atomic radii of transition metals vary across a series and why?
(ii) Ions of transition metals are generally paramagnetic. Why?
(iii) Transition elements show different oxidation states. Why?

Formation of coloured ions is possible due to the presence of:

Describe the industrial method of preparation of Ammonia giving flow diagram and chemical equation and write chemical equation of the reaction of Ammonia with (i) Copper ion, and (ii) Silver ion.

Write electronic configuration of Cr (Z = 24) and Cu (Z = 29) and also explain two main characteristics of transition elements.

Explain the following with reasons: (i) Transition metals generally form coloured compounds.
(ii) Transition metals and their maximum compounds are paramagnetic.

What are transition elements? Write the names and electronic configuration of the elements of the first transition series. Transition metals and their maximum compounds are paramagnetic. Explain.