In the given reaction CH3−CH2−COOH (i)AgNo3−−−−−−→(ii)Br2/△[x] X will be
ethyl bromide
propyl bromide
propyl propanoate
all of these
CH3−CH2−COOHAgNO3−−−−→CH3CH2COOAgBr2/△−−−−→CH3CH2−Br