The products obtained when benzyl phenyl ether is heated with HI in the mole ratio 1 : 1 are
1.phenol
2. benzyl alcohol
3. benzyl iodide
4. iodobenzene
1 and 3 only
3 and 4 only
1 and 4 only
2 and 4 only
A compound 'A' having the molecular formula C5H12O, on oxidation gives a compound 'B' with molecular formula C5H10O. Compound 'B' gave a 2, 4-dinitrophenylhydrazine derivative but did not answer haloform test or silver mirror test. The structure of compound 'A' is
CH3-CH2-CH2-CH2-CH2-OH
CH3-CH2-CH2H-CH3
CH3-CH2-H-CH2-CH3
CH3-CH2-H-CH2-OH
Under which one of the following conditions, does the reaction
CH ≡ CH + CH3OH CH3O-CH=CH2 take place?
NH4OH/ 80°C
conc. H2SO4 / 160°C
CH3OK/ 160- 200°C
Dilute HCl/ THF, 80°C
Identify the product/s in the following reaction
3CH3CH = CH2 X Product/s + H3BO3
CH3CH2CH2OH
CH3CHOCH3
CH3CH2CHO
CH3CH2OH + CH3OH
Crown ethers are named as X-crown-Y. In the following crown ether, X and Y are respectively
6 and 12
18 and 6
24 and 6
6 and 24
The most suitable reagent for the conversion of primary alcohol into aldehyde with the same number of carbon is
acidified K2Cr2O7
acidified KMnO4
alkaline KMnO4
pyridinium chlorochromate
Which of the following reacts fastest with a mixture of anhydrous ZnCl2 and conc. HCl ?
Trimethyl carbonyl
Ethanol
Propanol
Methanol
Chlorination of toluene in presence of light and heat followed by treatment with aqueous NaOH gives:
o-cresol
p-cresol
mixture of o-cresol and p-cresol
benzoic acid
Which of the following compounds forms an addition compound with CH3MgBr2 which on hydrolysis produce a secondary alcohol ?
HCHO
CH3CHO
CH3OCH3
CH3COCH3
Which of the following compounds on treatment first with NaNO2/ HCl and then coupled with phenol produces p-hydroxyazobenzene ?
Nitrobenzene
Aniline
Azobenzene
Phenol