Among the statements (a)-(d) the correct ones | vedclass

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(A) Lithium has the highest hydration enthalpy among alkali metals due to its smallest ionic size.$(b)$ Lithium chloride $(LiCl)$ is soluble in pyridi

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

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(A) Lithium has the highest hydration enthalpy among alkali metals due to its smallest ionic size.$(b)$ Lithium chloride $(LiCl)$ is soluble in pyridine because it possesses significant covalent character due to polarization (Fajans' rule).$(c)$ Lithium reacts with ethyne $(C_2H_2)$ to form lithium ethynide $(Li_2C_2)$. Thus,statement $(c)$ is incorrect.$(d)$ Both lithium and magnesium react slowly with $H_2O$ due to their high ionization energy and protective oxide layers. Thus,statements $(a), (c)$ and $(d)$ are correct.

Column $-I$	Column $-II$
$(a).$ Spodumene	$(p).$ $K$
$(b).$ Borax	$(q).$ $Na$
$(c).$ Sylvine	$(r).$ $Li$
$(d).$ Chile saltpetre	$(s).$ $Ca$

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 $H_2O$.

Similar Questions

$NaOH$ is prepared by the method:

Match column $-I$ with column $-II$ :

Column $-I$ Column $-II$

$(a).$ Spodumene $(p).$ $K$

$(b).$ Borax $(q).$ $Na$

$(c).$ Sylvine $(r).$ $Li$

$(d).$ Chile saltpetre $(s).$ $Ca$

The correct order of electropositive nature of $Li$,$Na$ and $K$ is

Write down the biological importance of $Na$ and $K$ in the human body and give a brief note on the sodium-potassium pump.

Alkali metals form saline hydrides by direct synthesis at high temperatures. Which of the following represents the correct order of decreasing thermal stability of these hydrides?

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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 $H_2O$.