(a)
Interpretation: State whether the given compound contains covalent bonds and explain the reason.
Concept Introduction: Covalent compounds are formed by the mutual sharing of electrons between the atoms participating in the bond. It is formed between two non-metals. Ionic compounds are formed by the complete transfer of electrons between a metal and a non-metal.
(a)
Answer to Problem 127A
In KCl, the bond between K and Cl has an ionic character. Hence KCl is an ionic compound.
Explanation of Solution
Potassium (K) is an alkali metal and chlorine (Cl) is a non-metal. They form an ionic bond through the complete transfer of electrons. Thus they are ionic compounds and do not have covalent bonds.
(b)
Interpretation: State whether the given compound contains covalent bonds and explain the reason.
Concept Introduction: Covalent compounds are formed by the mutual sharing of electrons between the atoms participating in the bond. It is formed between two non-metals. Ionic compounds are formed by the complete transfer of electrons between a metal and a non-metal.
(b)
Answer to Problem 127A
In
Explanation of Solution
Both phosphorous and bromine are non-metals hence they form bonds by sharing electrons. So they have covalent bonds between them.
(c)
Interpretation: State whether the given compound contains covalent bonds and explain the reason.
Concept Introduction: Covalent compounds are formed by the mutual sharing of electrons between the atoms participating in the bond. It is formed between two non-metals. Ionic compounds are formed by the complete transfer of electrons between a metal and a non-metal.
(c)
Answer to Problem 127A
The compound ClBr is a molecular compound and it contains covalent bonds.
Explanation of Solution
Chlorine and bromine are both halogens and non-metals. So they form covalent bonds between them by the sharing of electrons.
(d)
Interpretation: State whether the given compound contains covalent bonds and explain the reason.
Concept Introduction: Covalent compounds are formed by the mutual sharing of electrons between the atoms participating in the bond. It is formed between two non-metals. Ionic compounds are formed by the complete transfer of electrons between a metal and a non-metal.
(d)
Answer to Problem 127A
In sodium iodide, the bond between sodium and iodine is ionic.
Explanation of Solution
Sodium is an alkali metal while iodine is a non-metal belonging to the halogen group. Both of them have high electronegativity differences hence they form bonds by the complete transfer of electrons. Thus they form ionic bonds.
Chapter 9 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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