Question

An organic compound $$A$$  reacts with methyl magnesium iodide to form an addition product which on hydrolysis forms the compound $$B.$$  Compound $$B$$  gives blue colour salt in Victor Meyer’s test. The compounds $$A$$  and $$B$$  are respectively

A. acetaldehyde, tertiary butyl alcohol
B. acetaldehyde, ethyl alcohol
C. acetaldehyde, isopropyl alcohol  
D. acetone, isopropyl alcohol
Answer :   acetaldehyde, isopropyl alcohol
Solution :
Compound $$B$$ is a Sec. alcohol since it gives blue colour in Victor-Meyer test and Sec alcohol are obtained by the action of $$C{H_3}MgI$$  on an aldehyde other than formaldehyde.
So $$A$$ is Acetaldehyde and $$B$$ is Isopropyl Alcohol.

Releted MCQ Question on
Organic Chemistry >> Alcohol, Phenol and Ether

Releted Question 1

Ethyl alcohol is heated with conc $${H_2}S{O_4}$$  the product formed is

A. \[{{H}_{3}}C\underset{\begin{smallmatrix} \parallel \\ O \end{smallmatrix}}{\mathop{-C-}}\,O{{C}_{2}}{{H}_{5}}\]
B. $${C_2}{H_6}$$
C. $${C_2}{H_4}$$
D. $${C_2}{H_2}$$
View Answer
Releted Question 2

The compound which reacts fastest with Lucas reagent at room temperature is

A. $${\text{butan - 1 - ol}}$$
B. $${\text{butan - 2 - ol}}$$
C. $${\text{2 - methylpropan - 1 - ol}}$$
D. $${\text{2 - methylpropan - 2 - ol}}$$
View Answer
Releted Question 3

A compound that gives a positive iodoform test is

A. 1 - pentanol
B. 2 - pentanone
C. 3 - pentanone
D. pentanal
View Answer
Releted Question 4

Diethyl ether on heating with conc. $$HI$$  gives two moles of $$H$$

A. ethanol
B. iodoform
C. ethyl iodide
D. methyl iodide
View Answer

Practice More Releted MCQ Question on
Alcohol, Phenol and Ether

Practice More MCQ Question on Chemistry Section

Physical ChemistrySome Basic Concepts in ChemistryStoichiometryStates of Matter Solid, Liquid and GasAtomic StructureChemical ThermodynamicsSolutionsSolid StateSurface ChemistryChemical EquilibriumIonic EquilibriumChemical KineticsRedox ReactionElectrochemistryNuclear Chemistry
Inorganic ChemistryChemical Bonding and Molecular StructureOres and MetallurgyClassification of Elements and Periodicity in PropertiesHydrogenS - Block ElementsP - Block ElementsD and F Block ElementsCo - ordination CompoundsQualitative AnalysisPreparation and Properties of CompoundsEnvironmental Chemistry
Organic ChemistryGeneral Organic ChemistryIsomerismPurification and Characterisation of Organic CompoundsHydrocarbons (Alkane, Alkene and Alkyne)Aromatic hydrocarbonElectrophilic Aromatic Substitution (Haloalkanes and Haloarenes)Alkyl and Aryl HalideReactions on BenzeneAlcohol, Phenol and EtherAldehyde and KetoneCarboxylic AcidOrganic Compounds Containing NitrogenName ReactionsPolymersBiomoleculesChemistry in Everyday LifePractical Organic Chemistry