Interpretation: The compounds which are not ionic need to be identified.
Concept Introduction: Ionic compounds are formed by the chemical combination of a metal and a non-metal. Here, metals tend to be electron-rich; thus, they lose electron/s to form a cation. Similarly, non-metals tend to be electron deficient, thus, they gain electron/s to form an anion. These cations and anions can combine in a fixed ratio to form ionic compounds.
Answer to Problem 67A
The compounds which are most likely not ionic are
Explanation of Solution
Reason for correct option/s:
Considering option (a),
Considering option (c),
Considering option (e)
Considering option (f),
Therefore, compounds given in option (a), (c), (e), and (f) are not ionic compounds.
Reason for incorrect option/s:
Considering
Similarly, O is a non-metal with 6 valence electrons. It can gain two electrons to form
Therefore,
Considering CaS, Calcium is a metal and sulphur is a non-metal. Ca can lose two electrons to form
ion. Since both Ca and S have equal charges, they can combine in 1:1 ratio to form an ionic compound.
Therefore, CaS is an ionic compound and option (d) is incorrect.
Chapter 7 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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