HARD
12th Uttar Pradesh Board
IMPORTANT
Earn 100

Give reasons for the following observation:

Aniline does not react with methyl chloride in the presence of anhydrous AlCl3 catalyst.

Important Questions on Sample Paper 1

HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 41
Identify the major product formed when 2-cyclohexylchloroethane undergoes a dehydrohalogenation reaction. Name the reagent which is used to carry out the reaction.
HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 42
Why are haloalkanes more reactive towards nucleophilic substitution reactions than haloarenes and vinylic halides?
MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 43
Name the alkene which will yield 1-chloro-1-methylcyclohexane by its reaction with HCl. Write the reactions involved.
EASY
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 44
Allyl chloride is hydrolysed more readily than n-propyl chloride. Why?
HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 46
How can Chargaff’s rule be used to infer that the genetic material of an organism is double- helix or single- helix?
HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 48
Why does the cell voltage of a mercury cell remain constant during its lifetime ?
MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 49
Write the reaction occurring at anode and cathode and the products of electrolysis of aq KCl.
MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 50
What is the pH of HCl solution when the hydrogen gas electrode shows a potential of -0.59 V at standard temperature and pressure?