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Nomenclature of Alcohols

Question

Molecular formula of ethanol is ?
$C_{2} H_{4} {(O H)}_{2}$
$C H_{3} O H$
$C_{2} H_{5} O H$
$H C H O$

A

H C H O

B

C_{2} H_{4} {(O H)}_{2}

C

C H_{3} O H

D

C_{2} H_{5} O H

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Solution

Verified by Toppr

The correct option is C. Ethanol is alcohol and is a primary $1$ degree monohydric alcohol with moleculer formula $C_{2} H_{5} O H .$

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Similar Questions

Q1

C_{2} H_{5} O H

can be differentiated from

{C H}_{3} O H

by:

View Solution

Q2

The compound having the molecular formula

C_{2} H_{4} O_{2}

is a :

View Solution

Q3

Calculate the thermal effect of the reaction

C_{2} H_{4} + H_{2} O = C_{2} H_{5} O H

, if

{Δ H}_{f o r m}^{o} (C_{2} H_{4}) = 55, 28 K J / m o l

{Δ H}_{f o r m}^{o} (H_{2} O) = - 241.8 K J / m o l

{Δ H}_{f o r m}^{o} (C_{2} H_{5} O H) = - 235.3 K J / m o l

.

View Solution

Q4

At

20^{o} C

the vapour pressure of

C H_{3} O H

and

C_{2} H_{5} O H

is 94 mm and 44 mm, respectively.

If 20 g of

C H_{3} O H

is mixed with 100 g of

C_{2} H_{5} O H

, determine the total pressure of the solution (in mm)

View Solution

Q5

Choose the correct answer from the four alternatives given in the brackets:
Alkanes have the general formula

C_{n} H_{2 n + 2}

. The molecular formula of the first hydrocarbon is ______.
(

{C H}_{4}, C_{2} H_{4}, C_{2} H_{6}, C_{2} H_{2}

)

View Solution