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Cobalt chloride is blue in anhydrous st...

Cobalt chloride is blue in anhydrous state . In contact with water vapours it turns

A

red

B

violet

C

pink

D

yellow

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Cobalt Chloride**: Cobalt chloride is a chemical compound that exists in two forms: anhydrous (without water) and hydrated (with water). In its anhydrous state, cobalt chloride appears blue. 2. **Effect of Water Vapors**: When cobalt chloride comes into contact with water vapors, it undergoes a chemical change. The presence of water causes the cobalt chloride to absorb moisture and transition from its anhydrous form to its hydrated form. 3. **Color Change**: The hydrated form of cobalt chloride is pink. Therefore, when cobalt chloride is exposed to moisture in the air, it changes color from blue to pink. 4. **Conclusion**: Based on the above observations, we can conclude that cobalt chloride, which is blue in its anhydrous state, turns pink when it comes into contact with water vapors. 5. **Final Answer**: The correct answer is option C: pink. ---
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