`CH_2 = CHCl` reacts with HCl to form

Options

A. A)`CH_2Cl - CH_2Cl`
B. `B)CH_3 - CHCl_2`
C. C)`CH_2 = CHCl . HCl`
D. D)none of these

Answer

To solve the reaction of CH₂=CHCl with HCl, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are:
- CH₂=CHCl (vinyl chloride)
- HCl (hydrochloric acid)

### Step 2: Understand the Reaction Type
This reaction is an addition reaction where HCl adds across the double bond of the alkene (vinyl chloride).

### Step 3: Apply Markovnikov's Rule
According to Markovnikov's rule, when HX (where X is a halogen) adds to an unsymmetrical alkene, the hydrogen atom (H) will attach to the carbon atom that has more hydrogen atoms already attached (the more substituted carbon).

In CH₂=CHCl:
- The first carbon (C1) has 2 hydrogen atoms (CH₂).
- The second carbon (C2) has 1 hydrogen atom and 1 chlorine atom (CCl).

Since C1 has more hydrogen atoms, the hydrogen from HCl will bond to C1.

### Step 4: Break the Double Bond
When HCl adds to the double bond, the double bond between C1 and C2 breaks.

### Step 5: Form the Product
After the addition:
- C1 will gain a hydrogen atom from HCl, becoming CH₃ (from CH₂).
- C2 will bond with the chlorine atom from HCl, becoming CHCl.

Thus, the product formed will be:
- CH₃-CHCl (1-chloroethane).

### Step 6: Write the Final Product
The final product of the reaction is:
- CH₃CHCl

### Conclusion
The reaction of CH₂=CHCl with HCl results in the formation of 1-chloroethane (CH₃CHCl).