Question
Phenol is more easily nitrated than benzene.
Nitration involves attack of electrophile nitronium ion (NO2) on benzene ring. Due to +R effect of -OH group electron density on benzene increases. Therefore, phenol is more easily nitrated as compared to benzene,
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| | Column I (Common names) | | Column II (IUPAC names) |
| (i) | Cinnamaldehyde | (a) | Pentanal |
| (ii) | Acetophenone | (b) | Prop-2-enal |
| (iii) | Valeraldehyde | (c) | 4-Methylpent-3-en-2-one |
| (iv) | Acrolein | (d) | 3-Phenylprop-2-enal |
| (v) | Mesityl oxide | (e) | 1-Phenylethanone |