The sequence of ionic mobility in aqueous sol | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In aqueous solutions,ions are hydrated. The extent of hydration is inversely proportional to the size of the ion. Smaller ions have higher charge

Vedclass · Accepted Answer

$Cs^{+} > Rb^{+} > K^{+} > Na^{+}$

Vedclass · Answer

(B) In aqueous solutions,ions are hydrated. The extent of hydration is inversely proportional to the size of the ion. Smaller ions have higher charge density,leading to greater hydration and a larger hydrated radius. Thus,the order of hydrated ionic size is $Na^{+} > K^{+} > Rb^{+} > Cs^{+}$. Since ionic mobility is inversely proportional to the hydrated size,the order of ionic mobility is $Cs^{+} > Rb^{+} > K^{+} > Na^{+}$.

List-$I$ (Salt)	List-$II$ (Flame colour wavelength)
$(a)$ $LiCl$	$(i)$ $455.5 \text{ nm}$
$(b)$ $NaCl$	$(ii)$ $670.8 \text{ nm}$
$(c)$ $RbCl$	$(iii)$ $780.0 \text{ nm}$
$(d)$ $CsCl$	$(iv)$ $589.2 \text{ nm}$

The sequence of ionic mobility in aqueous solutions is

Similar Questions

$NaHCO_3$ can be manufactured by Solvay's process but $K_2CO_3$ cannot be prepared because

Match List-$I$ with List-$II$:

List-$I$ (Salt) List-$II$ (Flame colour wavelength)

$(a)$ $LiCl$ $(i)$ $455.5 \text{ nm}$

$(b)$ $NaCl$ $(ii)$ $670.8 \text{ nm}$

$(c)$ $RbCl$ $(iii)$ $780.0 \text{ nm}$

$(d)$ $CsCl$ $(iv)$ $589.2 \text{ nm}$

Choose the correct answer from the options given below:

The alkali metals form salt-like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decreases in which of the following orders?

What are the by-products in the Solvay process for the production of $Na_2CO_3$?

The basicity of the hydroxides of the following alkali metals is of the order:

Vedclass Test Series

Exam Paper Generator

Online Exam Module