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Question
In the triad of Li, Na and K, which will turn an aqueous solution of methyl orange-red and why?
In the triad of Li, Na and K, which will turn an aqueous solution of methyl orange-red and why?
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Solution
- Lithium (Li), Sodium (Na), and Potassium (K) belong to the group of the periodic table. The basicity increases from top to bottom in a group.
- Hence, the hydroxide of Lithium (LiOH) is less basic than that of Sodium and Potassium.
- Methyl orange turns red in an acidic medium and changes its colour to yellow in a basic medium.
- Therefore, In the triad of Li, Na and K, Lithium can turn the aqueous solution of methyl orange-red.
- Lithium (Li), Sodium (Na), and Potassium (K) belong to the group of the periodic table. The basicity increases from top to bottom in a group.
- Hence, the hydroxide of Lithium (LiOH) is less basic than that of Sodium and Potassium.
- Methyl orange turns red in an acidic medium and changes its colour to yellow in a basic medium.
- Therefore, In the triad of Li, Na and K, Lithium can turn the aqueous solution of methyl orange-red.
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