Asynthesis reaction will produce a single

This reaction will produce a compound.

Explanation:

Synthesis reaction is defined as the reaction in which two or more substances combine in their elemental state to produce a single product known as compound.

General chemical equation for this reaction follows:

For Example: Formation of water from hydrogen and oxygen gas.

Hydrogen and oxygen gases are combining to produce a compound known as water molecule.

Thus, this reaction will always produce a compound.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.