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Q.

Is it true that sodium chloride will turn red litmus blue?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is false.
Since sodium chloride is a salt and an ionic substance, it cannot change the colour of the litmus paper because it is neither a base or an acid. In nature, salts are neutral. Red and blue litmus paper are the two different types of litmus paper. The blue litmus paper turns crimson, indicating that the substance is acidic. The red litmus paper becomes blue when the substance is basic or alkaline.
The correct statement would be, “Sodium chloride cannot change the colour of litmus paper”.
 
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