Main 31 · Advanced 28
Phenols
- Advanced 2015ChemistryMultiple correct
In the following reactions, the major product W is
- Advanced 2014ChemistryMultiple correct
The reactivity of compound Z with different halogens under appropriate conditions is given below:
Z + X₂ → mono halo substituted derivative when X₂ = I₂; di halo substituted derivative when X₂ = Br₂; tri halo substituted derivative when X₂ = Cl₂.
The observed pattern of electrophilic substitution can be explained by
- Advanced 2014ChemistrySingle correct
For the identification of β-naphthol using dye test, it is necessary to use
- Advanced 2014ChemistryList match
Match the four starting materials (P, Q, R, S) given in List I with the corresponding reaction schemes (I, II, III, IV) provided in List II and select the correct answer using the code given below the lists.
- Main 2014ChemistrySingle correct
Sodium phenoxide when heated with under pressure at 125°C yields a product which on acetylation produces C.
The major product C would be :
- Main 2014ChemistrySingle correct
Which one of the following reactions will not result in the formation of carbon-carbon bond ?
- Main 2014ChemistrySingle correct
The following reaction
is known as : - Main 2014ChemistrySingle correct
Which one of the following statements is not correct ?
- Main 2014ChemistrySingle correct
Phthalic acid reacts with resorcinol in the presence of concentrated to give :
- Main 2014ChemistrySingle correct
Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion () ?
- Main 2014ChemistrySingle correct
Which one of the following compounds will not be soluble in sodium bicarbonate ?
- Advanced 2013ChemistrySingle correct
The compound that does NOT liberate , on treatment with aqueous sodium bicarbonate solution, is
- Advanced 2013ChemistryMultiple correct
In the following reaction, the product(s) formed is(are)
- Advanced 2013ChemistryMultiple correct
The major product(s) of the following reaction is(are)
- Advanced 2010ChemistryMultiple correct
In the reaction phenol the intermediate(s) is(are)
- Advanced 2009ChemistrySingle correct
The correct acidity order of the following is
- Advanced 2007ChemistrySingle correct
Which one of the following reagents is used in the above reaction?
- Advanced 2007ChemistrySingle correct
The electrophile in this reaction is
- Advanced 2007ChemistrySingle correct
The structure of the intermediate I is