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Byju's Answer
Standard VII
Chemistry
Litmus
Sulphurous ac...
Question
Sulphurous acid turns _________ litmus paper __________.
A
blue, red
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B
red, blue
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C
red, red
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D
blue, blue
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Solution
The correct option is
B
blue, red
Sulphurous acid turns blue litmus red as it is the property of acids to turn blue litmus red.
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