Answer:

The prefix "Tetra" implies 4 Bromine atoms. The prefix "Deca" implies 10 fluorine atoms.
Answer:the branch of science which examines the material of the universe and changes that these materials undergo
Chemistry deals with composition,structure,properties of matter and changes that these materials undergo
Hydrogen ion<span>, strictly, the nucleus of a hydrogen atom separated from its accompanying electron. The hydrogen nucleus is made up of a particle carrying a unit positive electric charge, called a </span>proton<span>. The isolated hydrogen </span>ion<span>, represented by the symbol H </span>+<span>, is therefore customarily used to represent a </span>proton<span>.</span>
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Explanation:
In case of methyl alcohol , i.e. , CH₃OH ,
counting the equivalent protons , there are three protons of the methyl group at are all equivalent , and shows the chemical shift at 3.4 - 4.0 ppm , there is the increase in the chemical shift value due to the presence of an electronegative oxygen atom .
And there is one more hydrogen atom in the alcoholic functional group , and this hydrogen will also show a chemical shift at 5.0 - 5.5 ppm .
Therefore ,
Methyl alcohol will show two signals due to methyl proton and another due to OH hydrogen .