Organic Chemistry

Question 1

Reactions which use concentrated sulfuric acid

Answer 1

Elimination reaction(forming alkenes from alcohols)

Esterification (alcohol + carboxylic acids)

Question 2

Why is delivery tube removed quickly from inverted cylinder after all heating is done?

Answer 2

To avoid sucking back of water into the hot delivery tube

Question 3

What does broken pots,crockery pumice have? (Used in elimination reaction)

Answer 3

Silicon dioxide

Question 4

Conditions for addition polymerisation

Answer 4

Very high pressure
Ziegler natta catalyst

Question 5

Why is disposal of any polymer difficult?

Answer 5

It gives harmful combustion products.

It’s non biodegradable

Question 6

When there are two double bonds in an alkene what do you do?

Answer 6

For e.g
Buta-1,3-diene
Parent chain- location of all double bonds- prefix-ene

Question 7

How to write COOH in any structural fromulae

Answer 7

CO2H

Question 8

What is chiral

Answer 8

Molecules which have non-super imposable images
atoms with four unique groups attached

Question 9

Wedge

Answer 9

Towards observer

Question 10

Dash

Answer 10

Away from observer

Question 11

Carbon chain is always

Answer 11

In plane

Question 12

What happens when heated under reflux with acidified MNO4- ions

Answer 12

Double bond breaks due to it being potassium manganate
And OH- group also oxidises to COOH group

Question 13

What is a primary alcohol

Answer 13

A compound which contains CH2OH group