Which of the following represents the correct | vedclass

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

Question

(D) Hydration energy is directly proportional to the charge density of the ion,which is defined as the ratio of charge to size $(Charge/Size)$.For cat

Vedclass · Accepted Answer

$Al^{+3} > Mg^{+2} > Na^{+}$

Vedclass · Answer

(D) Hydration energy is directly proportional to the charge density of the ion,which is defined as the ratio of charge to size $(Charge/Size)$.For cations,as the charge increases and the size decreases,the hydration energy increases.Comparing $Al^{+3}$,$Mg^{+2}$,and $Na^{+}$: All are isoelectronic with the neon configuration,but $Al^{+3}$ has the highest charge and smallest size,followed by $Mg^{+2}$ and then $Na^{+}$.Therefore,the correct order is $Al^{+3} > Mg^{+2} > Na^{+}$.

Metals	Flame color
$1$. $Li$	$a$. Crimson red
$2$. $K$	$b$. Violet
$3$. $Rb$	$c$. Red-violet
$4$. $Cs$	$d$. Blue

Which of the following represents the correct order of hydration energy?

Similar Questions

Which of the following statements are correct regarding lithium $(Li)$ and magnesium $(Mg)$?
$I$) They react slowly with water
$II$) Their bicarbonates are solids
$III$) Their chlorides are not soluble in ethanol
$IV$) Their nitrates decompose easily on heating
The correct option is

The carbonate which does not leave a residue on heating is

Which one of the following elements reduces $NaOH$ to $Na$?

Match the following:

Metals Flame color

$1$. $Li$ $a$. Crimson red

$2$. $K$ $b$. Violet

$3$. $Rb$ $c$. Red-violet

$4$. $Cs$ $d$. Blue

$Cs^{+}$ ions impart violet colour to Bunsen flame. This is due to the fact that the emitted radiations are of

Vedclass Test Series

Exam Paper Generator

Online Exam Module