Question

Which of the following statement(s) is(are) not correct about Lithium?
This question has multiple correct options
(A) Lithium is the least reactive of alkali metals.
(B) It is the weakest reducing agent among all alkali metals.
(C) It forms no acetylide with acetylene.
(D) $LiHC{{O}_{3}}$ is a white crystalline solid.

Answer 1

Hint : We know that lithium is an alkali metal having higher value of oxidation potential and can easily lose electrons and do not react vigorously with water like the other alkali metals. $~LiCl$ is soluble in water and crystallizes in its aqueous form and on decomposition gives lithium oxide. .

Complete Step By Step Answer:
Lithium is alkali metal having atomic mass as three and mass number as six and lies in the first group and second period of the period table and belongs to the s-block elements. Lithium has a strong tendency to lose electrons and acquire the nearest noble gas electronic configuration and thus, act as a strong reducing agent and has a very high value of the oxidation potential.
Among alkali metals, metal has the very best price of ionization energy. However it's an oversized heat of association thanks to its tiny size. Thus, the association energy quite compensates the ionization energy. Hence its strongest reluctance among the alkali metals. Hence statement B is incorrect.
The reduction potential values are determined considering numerous factors like ionization energy and association heat content. It’s the extremely negative association heat content of metal ions that produces the ion extremely stable in Associate in nursing binary compound medium. However in Associate in nursing organic medium, the association doesn't crop up thence the reduction tendency is ruled by the ionization energy alone. Since metal includes a high price of ionization energy, then it does not form a compound with aliphatic compound. Hence statement C is incorrect.
Among the alkali metals, metal is least positive. metal differs from the remainder of the members of the family and shows abnormal behavior thanks to the diagonal relationship with $Mg.$ metal hydrogen carbonate $\left( LiHC{{O}_{3}} \right)$ found in resolution type and not far-famed to exist in traditional temperature and pressure, whereas others bicarbonates of alkali metals exist in solid-state. Hence statement D is incorrect.
Therefore, the correct answer is option B, C, D.

Note :
Note that all the alkali metals readily react with water to form hydroxides with the release of the hydrogen gas but lithium reacts slowly with water because it has higher activation energy and slower rate of reaction and forms colorless solution of lithium hydroxide along with the release of hydrogen gas.