The number of donor sites in dimethy1 glyoxime glycinato diethylene triamine and `EDTA` are respectively
`2,2,3` and `4`
(b) `2,2,3` and `6`
(c ) `2,2,2` and `6`
`2,3,3` and `6` .

Answer

To solve the question regarding the number of donor sites in dimethylglyoxime, glycinato, diethylene triamine, and EDTA, we will analyze each compound step by step.

### Step 1: Dimethylglyoxime (DMG)
1. **Structure**: Dimethylglyoxime has two nitrogen atoms that can donate lone pairs and one negatively charged oxygen that can also act as a donor.
2. **Donor Sites**:
- The two nitrogen atoms each contribute one donor site.
- The negatively charged oxygen can also donate a lone pair.
3. **Total Donor Sites**: Therefore, the total number of donor sites in dimethylglyoxime is **2**.

### Step 2: Glycinato
1. **Structure**: Glycinato has one nitrogen atom and one negatively charged oxygen atom that can act as donor sites.
2. **Donor Sites**:
- The nitrogen atom contributes one donor site.
- The negatively charged oxygen contributes another donor site.
3. **Total Donor Sites**: Thus, the total number of donor sites in glycinato is **2**.

### Step 3: Diethylene Triamine
1. **Structure**: Diethylene triamine consists of two nitrogen atoms at the ends and one nitrogen atom in the middle, along with ethylene groups.
2. **Donor Sites**:
- Each of the three nitrogen atoms can donate a lone pair.
3. **Total Donor Sites**: Therefore, the total number of donor sites in diethylene triamine is **3**.

### Step 4: EDTA (Ethylenediaminetetraacetic acid)
1. **Structure**: EDTA has four carboxylate groups (which can donate) and two nitrogen atoms.
2. **Donor Sites**:
- Each of the four carboxylate groups contributes one donor site.
- Each of the two nitrogen atoms contributes one donor site.
3. **Total Donor Sites**: Hence, the total number of donor sites in EDTA is **6**.

### Summary of Donor Sites
- Dimethylglyoxime: **2**
- Glycinato: **2**
- Diethylene triamine: **3**
- EDTA: **6**

### Final Answer
The number of donor sites in dimethylglyoxime, glycinato, diethylene triamine, and EDTA are respectively **2, 2, 3, and 6**. Thus, the correct option is **(b) 2, 2, 3, and 6**.