The value of C-O-C angle in ether molecule is :

1. 180$°$                                     

2. 150$°$ 

3. 90$°$                                       

4. 110$°$

Ethyl alcohol is also known as:

1. spirit of wine                         

2. methyl carbinol

3. grain alcohol                           

4. all of these

The products formed in the following reaction, C₆H₅-O-CH₃ + HI $\stackrel{\mathrm{Heat}}{\to }$ are-

1. C₆H₅OH and CH₃I 

2. C₆H₅I and CH₃OH

3. C₆H₅CH₃ and HOI

4. C₆H₆ and CH₃OI

The formula of phenoxy benzene is-

1. C₆H₅C₆H₅                             

2. C₆H₅-O-C₆H₅

3. C₆H₅-O-C₆H₆                         

4. None of the above

CH$\equiv$CH$\stackrel{{\mathrm{O}}_3/\mathrm{NAOH}}{\to }$X$\stackrel{\mathrm{Zn}/{\mathrm{CH}}_3\mathrm{COOH}}{\to }$Y is: 

1. CH₂OH-CH₂OH 

2. CH₃CH₂OH 

3. CH3COOH 

4. CH₃OH

Ether and benzene can be separated by:-

1. Filtration

2. Distillation

3. Crystallization

4. Sublimation

The order of decreasing acidic character of cyclohexanol (I), acetic acid (II), 2,4,6-trinitrophenol (III), and phenol (IV),is -                                                     

1. III>II>IV>I 

2. II>III>I>IV

3. II>III>IV>I 

4.  III>IV>II>I

Picric acid and benzoic acid can be distinguished by:

1. Aqueous NaHCO₃                   

2. Aqueous $\mathrm{NaOH}$

3. Aqueous FeCl₃                       

4. Aqueous Na₂CO₃  

Butan-2-ol is a-

1. Primary alcohol                     

2. Secondary alcohol

3. Tertiary alcohol                       

4. None of the above

Primary alcohols can be obtained from the reaction of the RMgX with:

1. HCHO                       

2. H₂O

3. CO₂                         

4. CH₃CHO