Salts of normal elements [1 (IA) to 17 (VIIA)] are generally...............

Options

A. colourless
B. green
C. white
D. blue

Explanation

To answer the question: "Salts of normal elements [1 (IA) to 17 (VIIA)] are generally...", we need to analyze the properties of salts formed by elements from Group 1 (IA) and Group 17 (VIIA) of the periodic table.

### Step-by-Step Solution:

1. **Identify the Groups**:
- Group 1 (IA) consists of alkali metals: Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), and Cesium (Cs).
- Group 17 (VIIA) consists of halogens: Fluorine (F), Chlorine (Cl), Bromine (Br), and Iodine (I).

2. **Formation of Salts**:
- Salts are typically formed when an alkali metal reacts with a halogen. For example, Sodium (Na) reacts with Chlorine (Cl) to form Sodium Chloride (NaCl).
- The reaction involves the transfer of an electron from the alkali metal to the halogen, resulting in the formation of positive and negative ions which are held together by ionic bonds.

3. **Properties of Salts**:
- Salts formed from these elements are generally ionic compounds.
- They are usually crystalline solids at room temperature.
- Many salts, such as Sodium Chloride (NaCl), are soluble in water and have a characteristic taste (salty).

4. **Color of Salts**:
- Pure Sodium Chloride (NaCl) is colorless and forms a crystalline structure. Other salts may have different colors depending on the metal and the anion involved.

5. **Conclusion**:
- Therefore, the salts of normal elements from Group 1 (IA) and Group 17 (VIIA) are generally colorless, crystalline solids that are soluble in water.

### Final Answer:
Salts of normal elements [1 (IA) to 17 (VIIA)] are generally **colorless and crystalline**.