a.
Interpretation:
The naming of the given molecular compound S2Cl2 is to be done.
Concept introduction:
The positive ion of the compound is written normally while the negative ion is written according to IUPAC convention. Prefixes and suffixes are added according to numbers.
a.

Answer to Problem 116A
The name of the given compound is disulphur dichloride.
Explanation of Solution
The presence of 2 atoms of each element in the molecule is the reason for the use of di- prefix.
b.
Interpretation:
The naming of the given molecular compound SO3 is to be done.
Concept introduction:
The positive ion of the compound is written normally while the negative ion is written according to IUPAC convention. Prefixes and suffixes are added according to numbers.
b.

Answer to Problem 116A
The name of the given compound is Sulphur trioxide.
Explanation of Solution
Single atom of Sulphur is present, so it is written without prefix and 3 atoms of oxygen means tri- prefix is used for oxygen.
c.
Interpretation:
The naming of the given molecular compound CS2 is to be done.
Concept introduction:
The positive ion of the compound is written normally while the negative ion is written according to IUPAC convention. Prefixes and suffixes are added according to numbers.
c.

Answer to Problem 116A
The name of the given compound is carbon disulphide.
Explanation of Solution
Single atom of carbon is present, so it is written without prefix and 2 atoms of oxygen means di- prefix is used for oxygen.
d.
Interpretation:
The naming of the given molecular compound P4O10 is to be done.
Concept introduction:
The positive ion of the compound is written normally while the negative ion is written according to IUPAC convention. Prefixes and suffixes are added according to numbers.
d.

Answer to Problem 116A
The name of the given compound is bis- (diphosphorus pentoxide).
Explanation of Solution
2 atoms of phosphorus are present, so it is written with di- prefix and 5 atoms of oxygen means pent(a)- prefix is used. Also, the compound is a dimer so bis- prefix is used.
Chapter 15 Solutions
Chemistry: Matter and Change
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