27 verified questions · ~24 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
Consider the following four compounds: (I) toluene (methylbenzene) (II) benzene (III) anisole (methoxybenzene) (IV) (trifluoromethyl)benzene The correct arrangement for decreasing order of electrophilic substitution for the above compounds is:
Molality (m) of 3 M aqueous solution of NaCl is: (Given: Density of solution = 1.25 g mL⁻¹, Molar mass in g mol⁻¹: Na — 23, Cl — 35.5)
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