The `CH_(3)-` group in propene exerts

The (CH_(3))_(3)C - group in t -butylacetylene exerts

Statement 1 : Acetoacetic ester (CH_(3)COCH_(2)COOC_(2)H_(5)) contains CH_(3)CO group but does not give iodoform test. Statement 2 : The H-atoms of the CH_(3) group are more acidic than those of CH_(2) group.

Assertion: Acetoacetic ester (CH_(3)COCH_(2)COOHH_(5)) contains CH_(3)CO group but does not give idoform test. Reason : The H-atoms of the CH_(3) group are more acidic than those of CH_(2) group

In Chlorophyll 'a' CH_(3) group is attached at

In Chlorophyll 'a' CH_(3) group is attached at

(a) Match the formulae in group A with appropriate names from groupB: Group A: CH_(3)COOH,CH_(3)CHO,CH_(3)OH Group B: Ethanol, Methanol, Ethanal, Ethanoic acid

What is the effect of the following groups on the acidity of phenol ? (i) -CH_(3) group (ii) -NO_(2) group.