An element which is an essential constituent of all organic compounds belongs to :

Which of the following is the correct representation of the electron dot structure of nitrogen $(N_2)$?

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

The correct electron dot structure of a water molecule is:

Draw the electron dot structure of ethane,$C_{2}H_{6}$.

Name an element,other than carbon,which exhibits the property of catenation up to seven or eight atoms. Are these compounds stable?