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(B) Carbon compounds are covalent compounds formed by the sharing of electrons.$(i)$ They do not contain charged particles (ions) and are therefore po

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$(ii)$ and $(iv)$

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(B) Carbon compounds are covalent compounds formed by the sharing of electrons.$(i)$ They do not contain charged particles (ions) and are therefore poor conductors of electricity. Thus,statement $(ii)$ is correct and $(i)$ is incorrect.$(ii)$ Due to the covalent nature of the bonds,the forces of attraction between the molecules are not very strong. Consequently,they have low melting and boiling points. Thus,statement $(iv)$ is correct and $(iii)$ is incorrect.Therefore,statements $(ii)$ and $(iv)$ are correct.

Which of the following statements are usually correct for carbon compounds?
$(i)$ Are good conductors of electricity
$(ii)$ Are poor conductors of electricity
$(iii)$ Have strong forces of attraction between their molecules
$(iv)$ Do not have strong forces of attraction between their molecules

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Which of the following statements are usually correct for carbon compounds?$(i)$ Are good conductors of electricity$(ii)$ Are poor conductors of electricity$(iii)$ Have strong forces of attraction between their molecules$(iv)$ Do not have strong forces of attraction between their molecules