The catalyst used in the hydrogenation of oils is
$Fe$
$Ni$
$Pt$
$V_2O_5$
Which of the following is decreasing order of $I.P_2$ ?
The catalytic activity of transition elements is related to their
$Cr^{+2}$ has a magnetic moment same as that of
Which is a stronger reducing agent $Cr ^{2+}$ or $Fe ^{2+}$ and why?
When ammonia is added to a cupric salt solution, the deep blue colour is observed it is due to the formation of