Which of the following statements is correct?

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

Question

(C) $1$. $LiHCO_3$ does not exist in solid state; it is only known in solution form.$2$. Potassium superoxide $(KO_2)$ contains the paramagnetic super

Vedclass · Accepted Answer

$Be(OH)_2$ is insoluble in water but soluble in $NaOH$

Vedclass · Answer

(C) $1$. $LiHCO_3$ does not exist in solid state; it is only known in solution form.$2$. Potassium superoxide $(KO_2)$ contains the paramagnetic superoxide ion $(O_2^-)$,which has one unpaired electron,so it is paramagnetic,not diamagnetic.$3$. $Be(OH)_2$ is amphoteric in nature. It is insoluble in water but reacts with strong bases like $NaOH$ to form beryllates,e.g.,$Na_2[Be(OH)_4]$,making it soluble.$4$. $Li_2CO_3$ is less thermally stable than $Na_2CO_3$ because the small $Li^+$ ion polarizes the carbonate ion more effectively,leading to easier decomposition into $Li_2O$ and $CO_2$.

Metal	Ore
$1$. Sodium	$a$. Barite
$2$. Potassium	$b$. Carnallite
$3$. Barium	$c$. Beryl
$4$. Beryllium	$d$. Chile saltpetre

Similar Questions

The $Cs^{+}$ ion imparts a violet color to the flame. This is due to the fact that the emitted radiation has .........

Match the following:

Metal Ore

$1$. Sodium $a$. Barite

$2$. Potassium $b$. Carnallite

$3$. Barium $c$. Beryl

$4$. Beryllium $d$. Chile saltpetre

$A$ mixture of lime paste is composed of sand,water,and which of the following?

What is obtained when sodium metal is heated in a stream of dry ammonia?

Why are lithium salts commonly hydrated and those of the other alkali metal ions usually anhydrous?

Vedclass Test Series

Exam Paper Generator

Online Exam Module