Which statement best represents a nonpolar covalent bond? * a metal and a nonmetal share electrons unequally in a bind a nonmetal strips an electron from a metal creating positive and negative ions that

bond

2 or more metals share electrons equally in a bond

2 or more nonmetals share electrons unequally in a bond

O2 or more nonmetals share electrons equally in a bond

What is the formula for carbon tetrabromide *

he would use the colour black

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.