Which of the following statement(s) is/are incorrect regarding property of alkali metals? I. Alkali metal on reaction with water produces a gas as a byproduct which burns with poping sound. II. Alkali metals dissolve in excess of ammonia to produce bronze colour liquid. III. Alkali metal halides are ionic in nature. IV. All alkali metal hydrides are ionic in nature.
A.I, II and III
B.Only I
C.II and IV
D.Only IV✓ Correct
Explanation
Statement IV is incorrect because all metal hydrides are not ionic in nature. Lithium hydride is covalent in nature.