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Litmus

What do you o...

Question

What do you observe when the following substance is burned and then tested with moist blue and red litmus paper?
Phosphorous

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Solution

Phosphorus on burning produces dense white fumes of phosphorus pentoxide. When test with blue and red litmus paper, it changes the colour of blue litmus to red as it is acidic in nature. The red litmus remains unaffected.

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