A compound has the empirical formula {C}_{10} {H}_{8} {Fe}. A solution of 0.26 {g} of the compound in 11.2 {g} of benzene ({C}_{6} {H}_{6}) boils at 80.26^\circ {C}. The boiling point of benzene is 80.10^\circ{C}; the {K}_{{b}} is 2.53^\circ{C} \/ {molal}. What is the molecular formula of the compound?

JEE Advanced 2021 Full Test 2 Paper 1

PART – II

Chemistry

SECTION – A (One Options Correct Type)
This section contains 06 multiple choice questions. Each question has four choices (A), (B), (C) and(D), out of which ONLY ONE option is correct.

Question : 22 of 54

Marks: +1, -0

A compound has the empirical formula C10H8Fe. A solution of 0.26g of the compound in 11.2g of benzene (C6H6) boils at 80.26°C. The boiling point of benzene is 80.10°C; the Kb is 2.53°C∕molal. What is the molecular formula of the compound?

C30H24Fe3
C10H8Fe
C5H4Fe
C20H16Fe2

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