Blue litmus solution is added in the test tube. Air is blown through a straw by a student. The solution turns red. Explain.
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Answer:
because it becomes acidic
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Answer:A litmus solution shows red colour when it comes in contact with acid .
The air that we exhaled into the aqueous solution of litmus was Carbon dioxide. Since Carbon Dioxide is an acidic gas,the colour of the solution changes to red showing presence of acid.
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