In which of the following metallic bond is strongest?
Strength of metallic bond depends upon number of unpaired electron. As number of unpaired electron increases, the bond strength increases, So, Cr, Mo, W show stronger bonding due to maximum number of unpaired electrons.
Nessler’s reagent is
Coinage metals show the properties of
Which of the following elements does not belong to the first transition series?
Zinc does not show variable valency like d-block elements because
Which of the following statements is not true in regard to transition elements?
The catalytic activity of the transition metals and their compounds is ascribed to their
Cuprous ion is colourless, while cupric ion is coloured because
Of the ions Zn2+, Ni2+ and Cr3+,
(atomic number of Zn = 30, Ni = 28, Cr = 24)
Which of the following ions has the highest magnetic moment?
Which of the following elements has the maximum first ionization potential?