Preparation of Haloalkanes from Alcohol

Q.

The shape of methyl carbocation is:

1. Trigonal planar

2. Square planar

3. Tetrahedral

4. None of the above

Q. What is the major product of the following reaction? $H_{2}C=CH-C{H}_{2}OH\stackrel{HBr\left(excess\right)}{\to }Product$

1. $C{H}_3-CHBr-C{H}_{2}Br$
2. $H_{2}C=CH-C{H}_{2}Br$
3. $C{H}_3-CHBr-C{H}_{2}OH-$
4. $C{H}_3-CHOH-C{H}_{2}OH$

Q. From amongst the following alcohols the one that would react fastest with conc HCl and anhydrous $ZnC{l}_2$?

1. 2-butanol
2. 2-methylpropan-2-ol
3. 2-methylpropanol
4. 1-butanol

Q. What is the major product of the following reaction? $H_{2}C=CH-C{H}_{2}OH\stackrel{HBr\left(excess\right)}{\to }Product$

1. $C{H}_3-CHBr-C{H}_{2}Br$
2. $H_{2}C=CH-C{H}_{2}Br$
3. $C{H}_3-CHBr-C{H}_{2}OH-$
4. $C{H}_3-CHOH-C{H}_{2}OH$

Q. In order to prepare 1-chloropropane which of the following reactants can be employed?

1. Propene and HCl in presence of peroxide
2. Propene and $C{l}_2$ followed by treatment with aq. KOH
3. Propanol-1 and $SOC{l}_2$ pyridine
4. Any of the above can used

Q.

When phosphorous trihalide is reacted with a suitable alcohol to form haloalkane, the side product of reaction is

1. Hypophosphorous acid

2. Phosphorous acid

3. Phosphoric acid

4. Pyrophosphoric acid