Q) What happens when:
a) Ethane reacts with bromine
water
b) Methane reacts with Chlorine
c) Ethanol reacts with acidified potassium dichromate.

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Solution

$a) B r_{2} / H_{2} O d e c o l u r i s e s o n l y a l k e n e a n d a l k a n e h a s n o r e a c t i o n w i t h i t . b) M e t h a n e u n d e r g o e s s u b s t i t u t i o n r e a c t i o n w i t h c h l o r i n e w h e n r e a c t s i n t h e p r e s e n c e o f s u n l i g h t . C H_{4} + C l_{2} \overset{h ν}{\to} C H_{3} C l + H C l M e t h a n e M e t h y l c h l o r i d e C H_{3} C l + C l_{2} \overset{h ν}{\to} C H_{2} C l_{2} + H C l M e t h y l e n e c h l o r i d e C H_{2} C l_{2} + C l_{2} \overset{h ν}{\to} C H C l_{3} + H C l C h l o r o f o r m C H C l_{3} + C l_{2} \overset{h ν}{\to} C C l_{4} + H C l C a r b o n t e t r a c h l o r i d e c) E t h a n o l r e a c t s w i t h a c i d i f i e d p o t a s s i u m d i c h r o m a t e g i v i n g e t h a n o i c a c i d t h r o u g h t h e f o r m a t i o n o f e t h a n a l C H_{3} C H_{2} O H \overset{(O)}{\to} C H_{3} C H O \overset{(O)}{\to} C H_{3} C O O H E t h a n o l E t h a n a l E t h a n o i c a c i d$

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Q) What happens when: a) Ethane reacts with bromine water b) Methane reacts with Chlorine c) Ethanol reacts with acidified potassium dichromate.

Q) What happens when:
a) Ethane reacts with bromine
water
b) Methane reacts with Chlorine
c) Ethanol reacts with acidified potassium dichromate.