CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Nomenclature of Carboxylic Acids

a pure colour...

Question

a pure colourless liquid (X) having B.P 118 celsius which is hygroscopic and miscible with water.X on heating with P2O3 loses water form compound Y. X and Y respectively are?

Open in App

Solution

The compound is definitely an alcohol and the boiling point of the compound matches with butanol. Butanol is less hygroscopic and is miscible with water. Butanol on heating with P₂O₅ loses water molecule forming butene (alkene)
So the compound X is butanol
Y is butene
$C H_{3} C H_{2} C H_{2} C H_{2} O H \to_{- H_{2} O}^{P_{2} O_{5}} C H_{3} C H_{2} C H = C H_{2} B u \tan o l B u t e n e$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Are all liquids miscible with water?

Q. Hydrolysis of

S i C l_{4}

X

H C l

. On heating to

1000^{\circ}

C

X

loses water and forms

Y

X

Y

Q. Ethanol on reaction with alkaline

K M n O_{4}

gives a compound

^{'} A^{'}

while on heating with hot and conc.

H_{2} S O_{4}

it gives another compound

^{'} B^{'}

which decolourises bromine water. Compounds

^{'} A^{'}

^{'} B^{'}

respectively are

A

reacts with water to form a compound

B

which is used in white washing. The compound

B

on heating forms an oxide

C

which on treatment with water gives back

B

B

C

Q. Which of the following is likely to be a pure substance?
A) A colourless liquid that boils over the range 70

^{o}

^{o}

C.
B) A green solid which starts to melt to 80

^{o}

C and is completely melted at 90

^{o}

C.
C) A white solid which produces a chromatogram consisting of only one spot.
D) A brown liquid that is completely miscible with water.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Structure, Nomenclature and Properties

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Nomenclature of Carboxylic Acids

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon