Give a balanced equation for the lab. preparation of ethylene. How is the gas collected?

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Solution

Balanced Equation of ethylene:

$C H_{3} - C H_{2} O H + H_{2} S O_{4} ⟶ C H_{3} - C H_{2} H S O_{4} + H_{2} O$

$C H_{3} - C H_{2} H S O_{4} excess H_{2} S O_{4} - ------- \to 1600^{o} C C H_{2} = C H_{2}$

The gas is collected by downward displacement of water

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Give a balanced equation for the lab. preparation of ethylene. How is the gas collected?

Balanced Equation of ethylene: CH3−CH2OH+H2SO4⟶CH3−CH2HSO4+H2O CH3−CH2HSO4excess H2SO4−−−−−−−−→1600oCCH2=CH2 The gas is collected by downward displacement of water

Balanced Equation of ethylene:

$C H_{3} - C H_{2} O H + H_{2} S O_{4} ⟶ C H_{3} - C H_{2} H S O_{4} + H_{2} O$

$C H_{3} - C H_{2} H S O_{4} excess H_{2} S O_{4} - ------- \to 1600^{o} C C H_{2} = C H_{2}$

The gas is collected by downward displacement of water