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Diagonal Relationship between Li and Mg

23 With incre...

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23 With increasing concentration below 0.04 M of alkali metals in liquid ammonia conductivity of solution increases or decreases?

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Q. Statement-1 : Alkali metals dissolve in liquid ammonia to give blue solutions.

Statement-2 : Alkali metals in liquid ammonia give solvated species of the type $[M (N H_{3})_{n}]^{+}$ (M =alkali metals).

Q. Assertion :Alkali metals dissolves in liquid ammonia and produce solvated cations and solvated electrons. Reason: The concentrated solutions of alkali metals in liquid ammonia is bronze coloured.

Q. Assertion :Molar conductivity increases with decrease in concentration. Reason: Conductivity always decreases with decrease in concentration.

Q. Solutions of alkali metals in liquid ammonia at

- 33^{o} C

conduct electricity without chemical reaction at the electrodes. Hence, conductivity should :

Q. Assertion :Alkali metals dissolves in liquid ammonia to give blue solution Reason: Alkali metals in liquid ammonia give solvated species of the type

[M (N H_{3})_{n}]^{+}

M =

alkali metals).

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Diagonal Relationship between Li and Mg

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