The reaction
`RCH_(2)CH_(2)COOHunderset(Br_(2))overset("RedP")to`
`R-CH_(2)-underset(Br)underset(|)(CH)-COOH` is called as

The reaction RCH_2 CH_2 COOH underset(Br_2) overset("Red P")to R - CH_2- underset(|)CH -COOH is called

CH_(3)CH_(2)-CH_(2)-COOH overset("Red P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH This reaction is called

CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH This reaction is called

The reaction RCH_(2)CH_(2)COOHoverset(Red P + Br_2) to R - CH_(2) - CH(Br) -COOH

What are the products 'A' and 'B' in the following sequence reactions : 1. CH_(3)-CH_(2)-COOH underset(Br_(2))overset("Red 'P'")rarr A 2. A underset(H^(+))overset("alc.KOH")rarr B