Absolute alcohol (100% alcohol) is prepared by distillmg rectified spirit over

• Na

• CaCl₂

• Mg

• Mg(OC₂H₅)

Which one of the following gases is liberated when ethyl alcohol is heated with methyl magnesium iodide?

• Methane

• Ethane

• carbon dioxide

• Propane

The products formed when diethyl ether is reacted with cold HI are

• C₂H₅I + C₂H₅OH

• 2C₂H₅I + H₂O

• 2C₂H₅OH

• C₂H₅-O-O-C₂H₅ + H₂O

In the following reaction, X and Y respectively are-

C₂H₅OH $\stackrel{{\mathrm{KMnO}}_4/ {\mathrm{H}}^{+}}{\to }$ X $\underset{{\mathrm{H}}_2{\mathrm{SO}}_4/ ∆}{\overset{\mathrm{Y}}{\to }}$ CH₃COOC₂H₅

• CH₃OH, C₂H₅OH

• CH₃CHO, CH₃OH

• CH₂=CH₂, CH₃COOH

• CH₃COOH, C₂H₅OH

In the following reaction, A and B respectively are

A $\stackrel{\mathrm{HBr}}{\to }$ C₂H₅Br $\stackrel{\mathrm{B}}{\to }$ A

• C₂H₄ and alcoholic KOH/ $∆$

• C₂H₅Cl and aqueous KOH/ $∆$

• C₂H₅OH and aqueous KOH/ $∆$

• C₂H₂ and PBr₃

The reaction consitions used for converting 1, 2-dibromo ethane to ethylene are

• Zn, alcohol, $∆$

• KOH, alcohol, $∆$

• KOH, water, $∆$

• Na, alcohol, $∆$

Which one of the following is a secondary alcohol?

• 2-methyl-2-propanol

• 1-propanol

• 1-butanol

• 2-pentanol

Which one of the following is a secondary alcohol?

• 2-methyl-1 propanol

• 2-methyl-2-propanol

• 2-butanol

• 1-butanol

149.

The IUPAC name of an unsymmetrical ether with the molecular formula = C₄H₁₀O

• ethoxy propane

• methoxy ethane

• ethoxy ethane

• methoxy propane

Identify A and B in the following reaction-

C₂H₅Cl $\stackrel{\mathrm{A}}{\to }$ C₂H₅OH $\stackrel{\mathrm{B}}{\leftarrow }$ C₂H₅Cl

• A = aq. KOH; B = AgOH

• A = al. KOH/ $∆$; B = aq. NaOH

• A = aq. NaOH; B = AgNO₂

• A = AgNO₂; B = KNO₂