Tertiary alcohols (3°) having atleast four carbon atoms upon drastic oxidation yield carboxylic acid with

• one carbon atom less

• two carbon atoms less

• three carbon atoms less

• All the above three options are correct.

Lactic acid molecule has

• one chiral carbon atom

• two carbon atoms less

• three carbon atoms less

• asymmetric molecule

Which of the following aldehydes give red precipitate with Fehling solution?

• Benzaldehyde

• Salicylaldehyde

• Acetaldehyde

• None of the above

Aniline reacts with acetaldehyde to form

• Schiffs base

• carbylamine

• immine

• none of these

Best method of preparing alkyl chloride is

• ROH + SOCl₂ → 

• ROH + PCl₅ → 

• ROH + PCl₃ →

• ROH $+ \mathrm{HCl} \stackrel{\mathrm{Anhy}\hspace{0.17em}{\mathrm{ZnCl}}_2}{\to }$

Acetylene can be obtained by the reaction

• $\mathrm{HCOOK} \stackrel{\mathrm{Electrolysis}}{\to }$

• ${\mathrm{CHI}}_3 + \mathrm{Ag} \stackrel{∆}{\to }$

• ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH} \underset{443\mathrm{K}}{\overset{\mathrm{Conc}. {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}$

• Be₂C + H₂O →

47.

Which of the following is used in vulcanization of rubber?

• SF₆

• CF₄

• Cl₂F₂

• C₂F₂

Glucose on oxidation gives the acid containing the C-chiral atoms equal to

• 2

• 3

• 4

• 5

$\mathrm{A} \stackrel{\mathrm{HCl}}{\to } ({\mathrm{CH}}_3{)}_2\mathrm{C}={\mathrm{CHCOCH}}_3, \mathrm{A} \mathrm{is}$

• acetone

• propionaldehyde

• formaldehyde

• acetaldehyde

Formation of alkane by the action of zinc on alkyl halide is called

• Wurtz reaction

• Kolbe's reaction

• Ulmann's reaction

• Frankland reaction