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Byju's Answer
Standard VII
Chemistry
Litmus
turns red lit...
Question
______ turns red litmus to blue.
A
Acid
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B
Base
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C
Both of A and B
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D
None of A or B
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Solution
The correct option is
B
Base
Bases turn red litmus blue and acids turn blue litmus red.
Litmus is an indicator used to determine whether a solution is acidic or basic by changing its colour.
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Q.
What do we observe on pouring acetic acid on red blue litmus papers ?
(a) Red litmus remains red and blue litmus turns red.
(b) Red litmus turns blue and blue litmus remains blue.
(c) Red litmus turns blue and blue litmus turns red.
(d) Red litmus becomes colourless and blue litmus remains blue.
Q.
A substance which tastes bitter and turns red litmus to blue is called a .......... .
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Blue litmus turns red when added to a/an:
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A chemical which turns red litmus to blue is:
Q.
If a liquid turns blue litmus red, is it an acid, base or salt?
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