MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Earn 100

Name the suitable alcohol and reagent, from which 2-Chloro-2-methyl propane can be prepared.

Important Questions on Sample Paper 1

MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 25
Out of the Chloromethane and Fluoromethane , which one is has higher dipole moment and why?
HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 26
The formula Co(NH3)5CO3Cl could represent a carbonate or a chloride. Write the structures and names of possible isomers.
HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 27
Corrosion is an electrochemical phenomenon. The oxygen in moist air reacts as follows:
O2(g) + 2H2O(l) + 4e- → 4OH- (aq)
Write down the possible reactions for corrosion of zinc occurring at anode, cathode, and overall reaction to form a white layer of zinc hydroxide.
EASY
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 28
Explain how and why will the rate of reaction for a given reaction be affected when a catalyst is added.
MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 29
Explain how and why will the rate of reaction for a given reaction be affected when the temperature at which the reaction was taking place is decreased.
MEDIUM
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 30
Write the reaction and IUPAC name of the product formed when 2-Methylpropanal (isobutyraldehyde) is treated with ethyl magnesium bromide followed by hydrolysis.
HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 31

Write the equation for the following reaction:

Salicylic acid is treated with acetic anhydride in the presence of conc.H2SO4

HARD
12th Uttar Pradesh Board
IMPORTANT
Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - Sample Paper 1>Exercise>Q 32

Write the equations for the following reaction:

Tertiary butyl chloride is treated with sodium ethoxide.