Styrene undergoes the following sequence of reactions Molar mass of product (P) is:
Which of the following compound has most stable conjugate acid? 
Compare acidic strength of the following compounds:
(I) Phenol (II) \(p\)-Nitrophenol (III) \(p\)-Methylphenol (IV) \(p\)-Nitrobenzoic acid (V) Benzoic acid
Product of D-aldotetroses with conc. \(HNO_3\) gives optically inactive dicarboxylic acid. Which among the following will be D-Aldotetrose in the given structures? 