Question

CHEMISTRY
26. Due to the presence of an unpaired electron, free radicals are:
(a)chemically reactive (b)chemically inactive
(c)Anions
(d)cations
27. Which of the following compound reacts slower than benzene in electrophilic bromination?
(a)C6H5-CH3 (b)C6H5-OH (c)C6H5-NH2 (d)C6H5-NO2
28. Which is more stable carbocation?
(a)n-propyl cation (b)isopropyl cation (c)ethyl cation (d)Triphenylmethyl cation
29. Order of stability of vinyl, allyl and tertiary radical is :
(a)tertiary, vinyl, allyl (b)vinyl, tertiary, allyl
(c)tertiary, allyl, vinyl (d)allyl, tertiary, vinyl
30. Darbenes are the reactive intermediates in:
(a)carbylamines reaction (b)Reimer-tiemann reaction
(c) wittig reaction
(d) All the of these
31. Relative stabilities of the following carbocations will be is in the orders:
V
CH,02 O
CH KOCH, CHOCH2 CH2 - CH,
пшIV
(b)IV III<II<I (CIV<II<III<I (d)II<IV<III<I
og
(a)I<II III IV​

Answer 1

Answer:

Free radicals are more reactive

Explanation: due to the presence of electron