Match column $-I$ and column $-II$ with the correct molar mass values:

Column $-I$	Column $-II$
$(i)$ Barium sulphate	$(a)$ $1877 \ g/mol$
$(ii)$ Magnesium pyrophosphate	$(b)$ $235 \ g/mol$
$(iii)$ Ammonium phosphomolybdate	$(c)$ $188 \ g/mol$
$(iv)$ Silver chloride	$(d)$ $222 \ g/mol$
$(v)$ Silver bromide	$(e)$ $143.5 \ g/mol$
$(vi)$ Silver iodide	$(f)$ $233 \ g/mol$

(A) The molar masses are calculated as follows:
$(i)$ Barium sulphate $(BaSO_4)$: $137 + 32 + (4 \times 16) = 233 \ g/mol$ $(f)$
$(ii)$ Magnesium pyrophosphate $(Mg_2P_2O_7)$: $(2 \times 24) + (2 \times 31) + (7 \times 16) = 48 + 62 + 112 = 222 \ g/mol$ $(d)$
$(iii)$ Ammonium phosphomolybdate $((NH_4)_3PO_4 \cdot 12MoO_3)$: $\approx 1877 \ g/mol$ $(a)$
$(iv)$ Silver chloride $(AgCl)$: $108 + 35.5 = 143.5 \ g/mol$ $(e)$
$(v)$ Silver bromide $(AgBr)$: $108 + 80 = 188 \ g/mol$ $(c)$
$(vi)$ Silver iodide $(AgI)$: $108 + 127 = 235 \ g/mol$ $(b)$
Therefore,the correct matching is: $(i-f, ii-d, iii-a, iv-e, v-c, vi-b)$.