Find incorrect comparison of second ionisation energy
$Te < Sb$
$In > Sr$
$He > B$
$Fe < Fe^+$
Which forms interstitial compounds?
Match the catalysis (Column$-I$ ) with products (Column $-II$ )
Column $-I$ Catalyst | Column $-II$ >Product |
$(a)$ $V_2O_5$ | $(i)$ Polyethylene |
$(b)$ $TiCl_4/Al(Me)_3$ | $(ii)$ Ethanal |
$(c)$ $PdCl_2$ | $(iii)$ $H_2SO_4$ |
$(d)$ Iron oxide | $(iv)$ $NH_3$ |
Why do the transition elements exhibit higher enthalpies of atomisation?
Coloured salts are formed by