The d and f-Block Elements questions
808 published questions with worked solutions.
- The number of unpaired electrons in Fe^ 3+ ion is _________.
- Variable oxidation state and degenerated orbital shows [BCECE 2004]
- Differentiating electron in inner transition elements enters the………….. orbital.
- In the Periodic Table metals usually used as catalyst belong to [K CET 2007]
- The electronic configuration of transition elements is exhibited by [Guj CET 2006]
- The general electronic configuration of the transition elements is [MHT-CET 2008]
- Statement 1: Plutonium among the transuranic elements is the longest lived element. Statement 2: Plutonium is not radioactive.
- The elements having the electronic configuration [Kr]4d^ 10 4f^ 14 ,5s^25p^65d^2,6s^2 belongs to
- The metal having the highest melting point is
- Number of unpaired electrons in Gd (Z = 64) is ______
- Lanthanides have been placed in period ______
- The magnetic moment of an element is 1.73 (in units of Bohr magneton). Thus, the number of unpaired electrons can be ______
- Actinides have been placed in period ______
- Among the following metals, interatomic forces are probably weakest in
- Among the following elements, how many of them are transition elements? Zr, Sr, S, V, Mn, Os, Ce, Cs, Hf, Fe
- The colour of CuCr₂O₇ solution in water is green because:
- The most stable oxidation state of chromium is:
- Elements which generally exhibit multiple oxidation states and whose ions are coloured are known as:
- The colour of blue glass is due to the presence of oxide of
- Colour is imparted to glass by mixing:
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