Among the statements (A)-(D), the correct ones are: (a) Lithium has the highest hydration enthalpy among the alkali metals. (b) Lithium chloride is insoluble in pyridine. (c) Lithium cannot form ethynide upon its reaction with ethyne. (d) Both lithium and magnesium react slowly with H2O .

Question

Among the statements (A)-(D), the correct ones are: (a) Lithium has the highest hydration enthalpy among the alkali metals. (b) Lithium chloride is insoluble in pyridine. (c) Lithium cannot form ethynide upon its reaction with ethyne. (d) Both lithium and magnesium react slowly with H2O . (A) (a), (b) and (d) only (B) (b) and (c) only (C) (a), (c) and (d) only (D) (a) and (d) only

Tardigrade Admin · Accepted Answer

Lithium has highest hydration enthalpy among alkali metals due to its small size.LiCl is soluble in pyridine because LiCl have more covalent character.Li does not form ethynide with ethyne. Both Li and Mg reacts slowly with H2O

Q. Among the statements (A)-(D), the correct ones are :
(a) Lithium has the highest hydration enthalpy among the alkali metals.
(b) Lithium chloride is insoluble in pyridine.
(c) Lithium cannot form ethynide upon its reaction with ethyne.
(d) Both lithium and magnesium react slowly with $H_{2} O$ .

(a), (b) and (d) only

(b) and (c) only

(a), (c) and (d) only

(a) and (d) only

Lithium has highest hydration enthalpy among alkali metals due to its small size.LiCl is soluble in pyridine because LiCl have more covalent character.Li does not form ethynide with ethyne. Both Li and Mg reacts slowly with $H_{2} O$

Q. Among the statements (A)-(D), the correct ones are : (a) Lithium has the highest hydration enthalpy among the alkali metals. (b) Lithium chloride is insoluble in pyridine. (c) Lithium cannot form ethynide upon its reaction with ethyne. (d) Both lithium and magnesium react slowly with H2​O .