MCQ
The platinum wire which is used in borax bead test is dipped in:
- ✓powdered borax
- Bmetaboric acid
- Corthoboric acid
- Dall
✓
Answer
Correct option: A.
powdered borax
The borax bead test is the most common. A small loop is formed at the end of a platinum wire. The loop is cleaned with concentrated hydrochloric acid and dipped in powdered borax, then heated in the flame of a Bunsen burner until the borax melts, forming a bead.
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