IIT-JEE Exam

Among the following compounds, the most acidic is
(A) p-nitrophenol (B) p-hydroxybenzoic acid
(C) o-hydroxybenzoic acid (D) p-toluic acid

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IIT-JEE Other Question

Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl– , CN– and H2O, respectively,
are
(A) octahedral, tetrahedral and square planar (B) tetrahedral, square planar and octahedral
(C) square planar, tetrahedral and octahedral (D) octahedral, square planar and octahedral Extraction of metal from the ore cassiterite involves
(A) carbon reduction of an oxide ore (B) self-reduction of a sulphide ore
(C) removal of copper impurity (D) removal of iron impurity