Assertion : Ortho nitro phenol is more acidic than meta nitro phenol Reason : Ortho nitro phenol has more –I effect than meta nitro phenol
Assertion Benzaldehyde on treatment with concentrated nictric acid in the presence of concentrated sulhuric acid gives mainly meta nitro benzaldehyde. Reason The -CHO group is meta directing .
The strongest ortho/para and the strongest meta directing groups, respectively, are
The strongest ortho-para are strongest meta directing groups are respectively.
Although meta phosphoric acid is written as a monomer,it exists as a polymer, (HPO_(3))_(3) . the number of P-0-P bonds in cyclic tri-meta phosphoric acid is (A) zero (B) Two (C) Three (D) Four
Although meta phosphoric acid is written as a monomer,it exists as a polymer, (HPO_(3))_(3) . the number of P-0-P bonds in cyclic tri-meta phosphoric acid is (A) zero (B) Two (C) Three (D) Four
Carry out the following conversation. Phenol to aspirin Benzoic acid to meta- fluorobenzoic acid in not more than three steps.
