please answer all

26. From the description of aromaticity, which of the following options is INCORRECT; a) Aromatic compounds can either be mono or polycyclic in their formulation b) The planar system contain 4n+2 pi electrons in the ring c) Only few aramatic compounds are ring-shape d) Aromatic hydrocarbons have a pleasant smell 27. Electron withdrawing substituents, such as nitro groups, in any electron aromatic substitution reaction are always referred to as: a) Ortho/para directing and deactivating b) Meta directing and deactivating c) Ortho/para directing and activating d) Meta directing and activating 28. Which of the following compounds does not show aromaticity (a) H (b) (c) 18 ORC2601/001/0/2022 (d) OH 29. Identify an anti-aromatic compound from the following (a) (b) o (c) (d) Option a and 30. Identity a compound that undergoes the slowest electrophilic aromatic nitration OCH (a) CEN (b) (c)