R-CHO + H₂ $\to$RCH₂OH,

The catalyst used in the above reaction is -

1. Ni                                         

2. Pd

3. Pt                                         

4. All of above.

Methyl alcohol on oxidation with acidified K₂Cr₂O₇ gives:

1. CH₃COCH₃                           

2. CH₃CHO

3. HCOOH                                   

4. CH₃COOH

The best method to prepare cyclohexene from cyclohexanol is by using:

Which of the following is most acidic?

1. p-cresol                               

2. p-chlorophenol

3. p-nitrophenol                       

4. p-aminophenol

Z$\stackrel{{\mathrm{PCl}}_5}{\to }$X$\stackrel{\mathrm{Alc}.\mathrm{KOH}}{\to }$Y$\underset{2. {\mathrm{H}}_2\mathrm{O}; \mathrm{boil}}{\overset{1. \mathrm{Conc}. {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}$Z is:

1. CH₃-CH₂-CH₂-OH

2. ${\mathrm{CH}}_3-\underset{|}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_3$
$\mathrm{OH}$

3. (C₂H₅)₃C-OH

4. CH₃-CH=CH₂

The alkyl halide is converted into an alcohol by 

1. addition                           

2. substitution

3. dehydrohalogenation         

4. elimination

Glycerol on warming with excess of HI:

1. 2-iodopropane

2. 1-iodopropane

3. 1,2,3-tri-iodopropane

4. none of the above

Dehydrogenation of 2-butanol gives:

1. 2-Butene                                         

2. Butanone

3. Butyraldehyde                                 

4. 1-Butene

The compound having lowest boiling point among the following is -

1. Phenol                                 

2. o-Nitrophenol

3. m-Nitrophenol                       

4. p-Nitrophenol

Oxidation of 2-propanol by K₂Cr₂O₇ and dilute H₂SO₄ leads to the formation of:

1. Propanal                     

2. Propanoic acid

3. Methanoic acid             

4. Propanone