Which of these compound is synthesised by chloral?

Options

A. DDT
B. BHC
C. chloroform
D. Michlers ketone.

Explanation

To determine which compound is synthesized by chloral (CCl3CHO), we will analyze each of the given options step by step.

### Step 1: Identify the structure of chloral
Chloral is chemically represented as CCl3CHO. It consists of a carbonyl group (C=O) and a trichloromethyl group (CCl3).

**Hint:** Remember that chloral is a key starting material in organic synthesis due to its reactive carbonyl group.

### Step 2: Analyze the first option - DDT (Dichlorodiphenyltrichloroethane)
DDT is synthesized from chlorobenzene and chloral. The reaction involves heating chlorobenzene (C6H5Cl) with chloral in the presence of concentrated sulfuric acid (H2SO4). This process leads to the formation of DDT.

**Hint:** Look for reactions involving chlorobenzene and chloral to identify DDT synthesis.

### Step 3: Analyze the second option - BHC (Benzene Hexachloride)
BHC is produced by the chlorination of benzene using chlorine gas in the presence of sunlight. This process does not involve chloral.

**Hint:** Recall that BHC is formed through direct chlorination of benzene, not involving chloral.

### Step 4: Analyze the third option - Chloroform
Chloroform (CHCl3) is produced by the free radical halogenation of methane (CH4) with chlorine (Cl2). This reaction does not involve chloral.

**Hint:** Chloroform is synthesized from methane, not chloral.

### Step 5: Analyze the fourth option - Mischler's ketone
Mischler's ketone is synthesized from phosgene (COCl2) and dimethylaminobenzene. This reaction does not involve chloral.

**Hint:** Focus on the starting materials for Mischler's ketone; they do not include chloral.

### Conclusion
After analyzing all the options, we find that only DDT is synthesized from chloral. Therefore, the correct answer is:

**Answer:** DDT (Dichlorodiphenyltrichloroethane) is synthesized by chloral.