1.

CH_3 CH_2 CH_2 OH overset( x) to CH_3 CH= CH_2 ,The reagent 'X' is

Answer»

` 5% H_2SO_4 at 50 C `
` 75 % H_2SO_4 at 100 C `
` 95% H_2SO_4 at 170C `
` A1_2 O _3 , 170C `

ANSWER :C


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