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12TH CLASS CHEMISTRY GUESS PAPER 2023

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12TH CLASS CHEMISTRY GUESS PAPER 2023

12th chemistry guess paper

LONG QUESTION PAIRING 2023

QUESTION#5    CH1 +2 

QUESTION#6        CH5+15

QUESTION#7       CH7+9

QUESTION#8       CH8+10

QUESTION#9      CH12+13

Most Important Long Question 

Q#1: Explain position of hydrogen   

Q#2:Define Ionization energy . How does it vary in a group and periods of the periodic table

Q#3:Describe the process for the preparation of sodium metal on industrial scale by Down’s cell . Write advantages of this process

Q#4: Describe with diagram the manufacture of sodium hydroxides by diaphragm cell

Q#: Explain preparation of nitric acid 

Q#:Explain preparation of sulphuric acid also

( preparation By contact process)

Q#: Explain Corrosion (page#109)

Q#: Write four method for preparation of benzene 

Q#: Define Friedel craft reaction. Give mechanism with example of following reaction 

(a)Friedel craft alkylation reaction  (b) Friedel craft acylation 

Q#:Explain Orientation in electrophilic subsituation of benzene 

  1. Ortho and para directing group
  2.  (b) Meta- directing group

Q#: Explain Preparation of  alcohal 

Q#: Explain Preparation of phenol 

Q# Distinguish b/w primary,secondary and tertiary alcohals

QN0.5 V.imp from exercise (pg#226)

Q# acidic behaviour of phenol

Q#: Explain reforming /cracking

Q#: Define Isomerism . Explain its four types

Q#:Explain hybridization. 

Q#:Describe with mechanism aldol condensation reaction . Why formaldehyde does not give this reaction.

Q#: What type of aldehydes give Cannizzaro’s reaction? give its mechanism. 

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