The d and f-Block Elements questions
808 published questions with worked solutions.
- Lanthanide for which +II and +III oxidation states are common is
- Europium is
- The colour imparted by Co(II) compounds to glass is
- The transition metal used as a catalyst is
- First IE of 5d-elements are higher than those of 3d and 4d-elements. This is due to
- Uranium reacts with conc. HNO_3
- Misch metal is
- The main reason for larger number of oxidation state exhibited by the actinides than that corresponding lanthanides, is
- The lanthanide contraction is responsible for the fact that
- Consider the following statement I. The size of the lanthanide M^ 3+ ions decreases as the atomic number of M increases. II....
- The incorrect statement for d-block element is
- Magnetic moment of Cr(Z = 24), Mn^+(Z = 25) and Fe^ 2+ (Z = 26) are x, y, z. They are in order
- MnO_4^- is of intense pink colour, though Mn is in (+7) oxidation state. It is due to
- Which of the following is colourless?
- Hg_2Cl_2 ionises as .... and cation has .... unpaired electron(s)
- Select the coloured and paramagnetic ions
- Cuprous ion is colourless while cupric ion is coloured because
- Paramagnetism is given by the relation = 2 s(s+1) magnetons where 's' is the total spin. On this basis, the paramagnetism of Cu^+...
- Most transition metals I. forms sets of compounds which display different oxidation states of the metal II. form coloured ions in...
- Lanthanoids are
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