Question

Give the characteristic test for $O_2$ gas.

• A. Lime water test
• B. Potassium permanganate test
• C. Burning candle test
• D. All of these

Answer 1

The correct option is C Burning candle test

Characteristic test for oxygen ($O_2$) can be performed on the basis that oxygen supports burning. Therefore if we bring a burning candle near the source of oxygen, the intensity of the flame increases.