Question

Name the chemical that is responsible for causing yellowish of banana and change of color in cutted apple ?

Answer 1

Bananas like other fruit are ripened due to a hormone called etheylene . Etheylene  breaks down complex food into simple sugars and breaks down  pecitin,a substance which keeps banana hard .In addition 
there are hormones than break down green pigments which you see in un-ripe bananas and replace them with yellow pigments 

Answer 2

Name of chemical is ETHYLENE. Hope I helped u.... Plz mark as the BRAINLIEST answer if helpful....