IIT-JEE Exam

The electrophile in this reaction is
(A) : CHCl (B) +CHCl2
(C) :CCl2 (D) .CCl3

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IIT-JEE Other Question

Which one of the following reagents is used in the above reaction?
(A) aq. NaOH + CH3Cl (B) aq. NaOH + CH2Cl2
(C) aq. NaOH + CHCl3 (D) aq. NaOH + CCl4 While Fe3+ is stable, Mn3+ is not stable in acid solution because
(A) O2 oxidises Mn2+ to Mn3+ (B) O2 oxidises both Mn2+ and Fe2+ to Fe3+
(C) Fe3+ oxidizes H2O to O2 (D) Mn3+ oxidises H2O to O2