A solution gives yellowish orange colour when a few drops of universal indicator are added to it.
A solution gives yellowish orange colour when a few drops of universal indicator are added to it. This solution is of :
(a) Lemon juice
(b) Sodium chloride
(c) Sodium hydroxide
(d) Milk of magnesia
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Correct answer is (a) Lemon juice
Universal indicator gives yellowish orange colour in acidic medium. here lemon juice contains citric acid. (PH = 3 to 6)
Hence, in lemon juice, universal indicator gives yellowish orange colour.
While, sodium chloride solution is neutral sodium hydroxide and milk of magnesia solution are basic in nature.
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