Question

which of the following is not ionic a)NaOH b)HCHO c)KCI d)CaO​

Answer 1

Answer:

b) HCHO

Explanation:

NaOH, KCl and CaO are compounds of metal and non-metal, so they are ionic. HCHO totally consists of non-metals so it is covalent.

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Answer 2

Explanation:

Carbon tetrachloride is a covalent compound and dissolves in ether and alcohol like organic compounds. Hydrochloric acid is the gas dissolved in water while hydrogen chloride is the gaseous compound which is covalent in nature by its molecular structure. NaCl and KCl are ionic compounds which dissociate into its ions in the aqueous solution.