Question

The stability of the following alkali metal chlorides follows the order:

Solution

Correct option is

KCl > CsCl > NaCl > LiCl

 

The stability of a compound depends upon its enthalpy of formation, . Evidently more negative the value of , more stable is the compound. Thus option (KCl > CsCl > NaCl > LiCl) is correct, i.e.,

KCl (–428) > CsCl (–424) > NaCl (–400) > LiCl (–398). The values given in parentheses are in kJ mol–1.   

SIMILAR QUESTIONS

Q1

The solubility of hydroxides, fluorides or oxalates of the metal of Group IIA

Q2

CO2 cannot be obtained by heating:

Q3

Na and Li are placed in dry air. We get :

Q4

Which cannot be used to generate H2?

Q5

Which is a pair of paramagnetic species?

Q6

Which of the following alkali metal halides has the lowest lattice energy?

Q7

The hydration energy of Mg2+ is greater than that of

Q8

Among KO2 BaO2 and , unpaired electron is present in 

Q9

For two ionic solids CaO and KI, identify the wrong statement among the following?

Q10

The product, which is not formed when sodium thiosulphate is added to a natural solution of potassium permanganate, is