s-Block ElementsHard
Question
Consider the following statements ;
S1 : Alkali metals are strongly basic, they (except lithium) form solid bicarbonates.
S2 : Dissolution of alkali metal hydroxide in water is exothermic.
S3 : Aqueous solution of alkali metal hydroxides are strongly basic.
S4 : Thermal stability of alkali metal hydroxide decreases down the group. and arrange in the order of true/false.
S1 : Alkali metals are strongly basic, they (except lithium) form solid bicarbonates.
S2 : Dissolution of alkali metal hydroxide in water is exothermic.
S3 : Aqueous solution of alkali metal hydroxides are strongly basic.
S4 : Thermal stability of alkali metal hydroxide decreases down the group. and arrange in the order of true/false.
Options
A.T T T F
B.T T T T
C.T F T F
D.F F T F
Solution
S1 : Thermal stability of alkali metal bicarbonates increases with increasing metallic character.
S2 : Alkali metal hydroxides dissolve freely in water with evolution of much heat on account of intense hydration.
S3 : They have low bond dissociation energies on account of their bigger atomic size.
S4 : Thermal stability of alkali metal hydroxides increases down the group with increasing metallic character.
S2 : Alkali metal hydroxides dissolve freely in water with evolution of much heat on account of intense hydration.
S3 : They have low bond dissociation energies on account of their bigger atomic size.
S4 : Thermal stability of alkali metal hydroxides increases down the group with increasing metallic character.
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