Why NO2 shows -M effect.
Statement 1: The chlorine atom in HCl develops a partial negative charge and hydrogen atoms develop a partial positive charge.
Statement 2: A chlorine atom with a lower electronegativity attracts the shared pair of electrons towards its nucleus.
Which of the following statement is not true for halogens
1)chlorine has highest electron gain enthalphy
2)all forms monobasic oxyacids
3)all but flourine shows positive oxidation states
4)all are oxidising agents