(a)
Interpretation:
Formula of sulfur tetrafluoride has to be written.
Concept Introduction:
Two or more nonmetals combine to form molecular compounds. The naming of molecular compound is given by following two rules.
- Element that is present in far left of the periodic table appears in the name first.
- Element that is closer to bottom within any of the group appears in the name first.
Numerical prefixes are used in case of molecular compounds to mention how many times the atom of same elements occurs in the formula. Prefix mono is not used for the first element while for the second element it is used.
From the name of molecular compound, the molecular formula can be obtained by considering the name of the first element and second element along with the prefix. The prefix represents the number of atoms of same element is present in the molecular formula. This prefix is entered in subscript in molecular formula after the
(b)
Interpretation:
Formula of nitrogen trichloride has to be written.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Formula of dinitrogen pentoxide has to be written.
Concept Introduction:
Refer part (a).
(d)
Interpretation:
Formula of chlorine trifluoride has to be written.
Concept Introduction:
Refer part (a).
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Chemistry: Principles and Practice
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