MEDIUM
12th ICSE
IMPORTANT
Earn 100

Give an example to describe the Coupling reaction.

Important Questions on Sample Question Paper 4

HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 11
How would you differentiate between SN1 and SN2 mechanism of substitution reaction? Give one example of each.
MEDIUM
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 11
Give reasons: n-butylbromide has higher boiling point than t-butylbromide. 
 
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 11
Give reasons: Racemic mixture is optically inactive.
MEDIUM
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 11
Give reasons: The presence of the nitro group(−NO2) at o/p-positions increases the reactivity of haloarenes towards nucleophilic substitution reactions.
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 12
Describe the term crystal field splitting in an octahedral field.
 
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 12
Describe the term spectrochemical series.
 
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 12
Describe Linkage isomerism.
 
HARD
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 13
State the principles which serve as basis for the Froth floatation process in metallurgy.