Shown below is a heterocylic aromatic compound. How many more aromatic aromatic res forms exist? [HINT: Copy the structure, use one or more curved arrow and assess all possible structures) H N H3C

Which one of the following compounds is NOT an aromatic molecule? + + A + +

மத்தம் Which of the following ions is aromatic?

Meta directors in electrophilic aromatic substitution reactions have A) unpaired electrons in the atom attached to the ring B) partial or full positive charge on the atom attached to the ring C) highly electronegative atoms attached to the ring an so or sp2 hybridized atom attached to the ring

A) classify the compounds below as alkanes, alkenes, aligned, alcohols (primary, secondary or tertiary), carboxylic acids, esters and amides (primary, secondary or tertiary). If no compound of a particular class is present answer n/a. B) identify all isomers of compounds 1a, 1b, 1c, 1d and 1e. C) Sort compounds 1a, 1b, 1d, 1e, 1f, 1h, 1k, 1n and 1m in order of increasing boiling point. D) Sort compounds 1o, 1h and 1l in order of increasing solubility in water and briefly explain why.

please answer the 2 questions please

For the structure, determine the total number of a electrons and the number of n electrons delocalized in the ring. Indicate whether the compound is aromatic, nonaromatic, or antiaromatic. Assume the structure is planar. total number of r electrons: number of delocalized a ring electrons: The compound is: aromatic antiaromatic O nonaromatic

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Which structure is NOT aromatic? CH CH

Styrene (shown below) has 8 n electrons but is aromatic. Why?