Kanika takes a burning substance and collects the evolved vapours in a – McqOptions

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1.	Kanika takes a burning substance and collects the evolved vapours in a test tube, making sure that they do not escape.A small amount of water is added to the test tube. To the solution obtained, a few drops of blue litmus solution are added. The litmus solution turns red. Which of the following could be the burning substance?
A.	Mg
B.	S
C.	Na
D.	Fe
Answer» C. Na

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