Resorcinol and conc. H2SO4 in presence of phthalic anhydride produce a compound which is:
1. a dye 2. an antiseptic
3. an indicator 4. a detergent
When phenol is treated with an excess of bromine water, it gives-
1. m-Bromophenol
2. o- and p-Bromophenols
3. 2,4-Dibromophenol
4. 2,4,6-Tribromophenol
The correct order of decreasing acidic strength of the above compounds is -
1. III>I>II>IV
2. IV>III>I>II
3. II>IV>I>III
4. I>II>III>IV
Power alcohol is a mixture of petrol and alcohol in the ratio:
1. 4:1
2. 1:4
3. 2:1
4. 1:2
The formula for allyl alcohol is-
1. CH3-CH=CHOH
2. CH2=CHCH2OH
3. HOCH2CH2CH3
4. None of the above.
The -OH group of an alcohol or the -COOH group of a carboxylic acid on can be replaced
by -Cl using
1. phosphorus pentachloride
2. hypochlorous acid
3. chlorine
4. hydrochloric acid
p-nitrophenol is stronger acid than phenol because nitro group is:
1. Electron withdrawing
2. Electron donating
3. Basic
4. Acidic
Which of the following has highest boiling point?
1. Benzene
2. Phenol
3. Toluene
4. Ethyl benzene
The correct order of the acidic strength for the above compounds is -
(I) | (II) | (III) |
1. I > II > III
2. III > I > II
3. II > III > I
4. I > III > II