Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

231. What are paramagnetic and ferromagnetic substances? Account for the paramagnetic character of transition metal compounds. How does the paramagnetic character of the bivalent ions of first transition metal series vary from titanium (Z = 22) to copper (Z = 29)?

394 Views

Short Answer Type

232. What are inner transition elements? Write their general electronic configuration.

311 Views

233.

In what way are the observed oxidation states of the lanthanides related to their electronic configurations?

262 Views

Long Answer Type

234.

Describe the general characteristics of the transition elements with special reference to their tendency to:
(i)    Exhibit paramagnetism.
(ii)    Form complex compounds.
(iii)    Their catalytic behaviour.

178 Views

Short Answer Type

235. Why the transition element series show fewer oxidation states at their extreme ends e.g., Sc, Ti, Ni and Cu.

238 Views

236. What is the reason for the decreasing tendency to form divalent cation across the series as indicated by the decreasing E°_M²⁺ /M values?

166 Views

237.

Why are transition metals able to form alloys?

752 Views

238.

How is the variability in the oxidation states of transition metals different from that of the nontransition metals? Illustrate with examples.

151 Views

239. Why are the absorption bonds of lanthanoids narrow

Absorption bonds of lanthanoids narrow because of the shielding of the 4f orbitals by the filled 5s² and 5p⁶ sub-shells.

156 Views

240.

Assign reasons for the following:
The enthalpies of atomisation of transition metals are high.

172 Views