Question

property compound a b c d melting point high low low high boiling point high low low high does the compound dissolve in water? yes yes yes yes can the compound conduct electricity? yes yes, but poorly no yes which compounds are most likely ionic? compounds a and b compounds b and c compounds c and d compounds d and a

Explanation:

Step1: Recall ionic compound properties

Ionic compounds typically have high melting/boiling points, dissolve in water, and conduct electricity in aqueous form.

Step2: Match compounds to properties

Compound A: High m.p./b.p., dissolves in water, conducts electricity → matches ionic properties.
Compound B: Low m.p./b.p., conducts poorly → does not match ionic properties.
Compound C: Low m.p./b.p., does not conduct electricity → does not match ionic properties.
Compound D: High m.p./b.p., dissolves in water, conducts electricity → matches ionic properties.

Step3: Identify correct option

Compounds A and D fit the ionic compound profile, which corresponds to the last option.

Answer:

compounds D and A