Which of the following is not correctly match | vedclass

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(C) $1$. Thermal stability of alkali metal peroxides increases down the group due to the increase in the size of the cation,which stabilizes the large

Vedclass · Accepted Answer

$NaF < NaCl < NaBr < NaI$ : $mpt$ order

Vedclass · Answer

(C) $1$. Thermal stability of alkali metal peroxides increases down the group due to the increase in the size of the cation,which stabilizes the large peroxide anion. Thus,$Na_2O_2 $2$. Thermal stability of alkali metal bicarbonates increases down the group because the lattice energy increases as the size of the cation increases. Thus,$LiHCO_3 $3$. In $NaF, NaCl, NaBr, NaI$,the anion size increases,which leads to a decrease in lattice energy. Therefore,the melting point $(mpt)$ order should be $NaF > NaCl > NaBr > NaI$. The given order $NaF $4$. According to Fajan's rule,as the charge on the cation increases $(Na^+  MgCl_2 > AlCl_3$ is correct.

Elements	Ore
$1$. Lithium	$a$. Beryl
$2$. Sodium	$b$. Spodumene
$3$. Beryllium	$c$. Gypsum
$4$. Calcium	$d$. Carnallite

Which of the following is not correctly matched?

Similar Questions

Match the following:

Elements Ore

$1$. Lithium $a$. Beryl

$2$. Sodium $b$. Spodumene

$3$. Beryllium $c$. Gypsum

$4$. Calcium $d$. Carnallite

Which is an incorrect statement?

What happens when : $(i)$ sodium metal is dropped in water? $(ii)$ sodium metal is heated in free supply of air? $(iii)$ sodium peroxide dissolves in water?

Which of the following metals liberate hydrogen gas on reaction with dilute $H_2SO_4$?

$P \xrightarrow{\Delta } Q$ (metallic solid) $+ R \uparrow + S \uparrow$
$X \xrightarrow{\Delta } Y$ (amphoteric oxide) $+ R \uparrow + S \uparrow$
$P$ and $X$ are respectively:

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