is
added to solid sodium chloride taken in a test tube. The gas coming out through
the delivery tube is passed over a dry blue litmus paper and then over a moist
blue litmus paper. Record your observations and explain reason with the help of
chemical equation.
Answer:
(a)
Dry ammonia produces no hydroxide ions
. Therefore, red litmus paper does
not turn blue. But a solution of ammonia in water contains ions.
Therefore, red litmus turns blue. (2)
(b) Baking
soda provides a basic medium. Hence, colour of methyl orange will be yellow.
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