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Mixture used for the tips of match stic...

Mixture used for the tips of match stick is

A

S+K

B

`Sb_(2)S_(3)`

C

`K_(2)Cr_(2)O_(7)+S+red P`

D

`K_(2)Cr_(2)O_(7)+K+S`

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Identify the Components**: The question asks about the mixture used for the tips of matchsticks. The common components used in matchstick tips are red phosphorus and potassium dichromate. 2. **Understanding Red Phosphorus**: Red phosphorus is a non-poisonous form of phosphorus. It is used in the matchstick tip because it is stable and does not ignite easily, which ensures safety during storage and handling. 3. **Understanding Potassium Dichromate**: Potassium dichromate (K2Cr2O7) is an oxidizing agent. When struck against a rough surface, it helps in the ignition of the matchstick by providing the necessary oxygen to support combustion. 4. **Combining the Components**: The combination of red phosphorus and potassium dichromate creates a mixture that is effective for igniting the matchstick when struck against a suitable surface. 5. **Conclusion**: Therefore, the mixture used for the tips of matchsticks is red phosphorus and potassium dichromate. **Final Answer**: The mixture used for the tips of matchsticks is red phosphorus and potassium dichromate. ---
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