Fractional crystallization in acid solution

Dissolution  in sodium hydroxide and filtration

Extraction with concentrated ammonia and reprecipitation

The iron(II)oxide impurity in  bauxite can be removed by

CHEM

Strong cohesive forces make its ions immobile

Strong cohesive forces make its molecules immobile

Each of the potassium and chlorine ions has noble gas structure

Pottasium chloride solid does not conduct electricity because

Amino acids are obtained from proteins by

Sodium dioxonitrate(III) and ammonium chloride

Sodium trioxinitrate(V) and ammonium chloride

Sodium chloride and ammonium trioxonitrate(V)

Sodium chloride and ammonium diozonitrate(III)

Suitable reagents for the laboratory preparation of nitrogen are

Chemistry