EASY
12th ICSE
IMPORTANT
Earn 100

Give reasons: Racemic mixture is optically inactive.

Important Questions on Sample Question Paper 4

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.
MEDIUM
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 Magnetic separation in metallurgy.
MEDIUM
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 refining by liquation in metallurgy.
MEDIUM
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 19 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 13

Write the reactions involved in the following process: Leaching of bauxite ore to prepare pure alumina.