CHEMISTRY IMPORTANT QUESTIONS FOR CLASS 12th

CHEMISTRY IMPORTANT QUESTIONS FOR CLASS 12th

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chapter -5


Question no. : 1

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Light comes from skylights or windows and the dust

 particles to see it which is why the effects appear?

Question no. : 2


What is absorption and absorption Give examples.


Question no. : 3


What is the rule of Hardy Schultz Explain

Question no. : 4


What are enzymes Briefly write its induction mechanism.

Question no. : 5


Explain the difference between fluid-friendly and anti-fluid 

colloid.

Question no. : 6


What is emulsification Explain

Question no. : 7


What is brownie motion Explain

Question no. : 8


What is a golden number Explain with examples. 

Question no. : 9


What is Electrical Particle Circulation Explain

Question no. : 10


What is Michelle Explain

Question no. : 11


What do you understand by absorption?

Question no. : 12


What do you understand by physical absorption and chemical 

absorption  ?

Question no. : 13


Write down the factors affecting absorption  ?

Question no. : 14


Protection of colloids What do you understand by colloids  ? 

Question no. : 15


The number of gold (Gold number)   with what you think  ?

Question no. : 16


Explain what is the tinnitus effect  ?

Question no. : 17


What is Brownie Speed? What effect does heat have on it  ?

Question no. : 18


Explain what Michel is , with examples  ?

Question no. : 19


What are fluid friendly and anti-fluid colloids, give an example  ?

Question no. : 20


Write applications for colloidal bodies  ?

Question no. : 21


Write a comment on enzyme stimulation  ?

Question no. : 22


Explain what is dialysis  ?

Question no. : 23


Explain what is the rule of Hardy Schulz with examples   ?

Question no. : 24


What is the difference between colloid solution,  actual solution 

and  suspension  ? 

Question no. : 25


Write a comment –

  1. Self-motivation 
  2. Catalytic poison 

Question no. : 26


What is emulsifier and why is it used?  

Question no. : 1


Why does the sky appear blue? Explain

Question no. : 2


Explain the factors affecting absorption.

Question no. : 3


Why smoke control precipitates are installed in mill chimneys?

Question no. : 4


How the colloidal solution is classified on the

 basis of the projected phase and the physical 

conditions of the projection medium.

Question no. : 5


What is electromagnetism Explain

Question no. : 6


Explain the following :

(i)         Absorption entropy  (ii)        Rakshi colloid              

Question no. : 7


What is pepticization and condensation Explain

Question no. : 8


Write the properties of catalysts.

Question no. : 9


Explain positive and negative stimuli with examples.

Question no. : 10


If your clothes get stained then wash the clothes with a scrubber 

how does a scrubber remove the stains?

Question no. : 11


People working in coal mines use activated charcoal in gas masks why ?

Question no. : 12


Alum is put in the soil to purify the contaminated dirty water why?


Question no. : 13


Catalysts are more effective in the form of fine powder why ?

Question no. : 14


How is it possible to get rain by spraying silver iodide on clouds?

Question no. : 15


Explain the reason-

1.     (1.) When  sour is added in milk, it bursts.

2.      (2.)  Where the river mixes its water with the sea, it becomes delta. 

Question no. : 16


  1. How is it possible to get rain by spraying silver iodide on clouds?
  2. What happens is when freshly precipitated Fe (OH)  to slightly
  3.  dilute FeCl  solution is mixed with?

Question no. : 17


  1. The color of the sky is blue 

    ?  

  2. Delta is formed when rivers join the sea, why  ?

Question no. : 18


  1. In a dark room, the beam of  light coming from the window makes
  2.  the dust particles shine?
  3. Applying alum on the injured area stops the bleeding ? 

Question no. : 19


  1. Turning alum clears the water containing mud ?
  2. Okjelika acid KMnO mixed color after the first but slowly
  3.  begins to disappear rapidly ? 

Question no. : 20


  1. What is the function of P and BaSO by Rosenmund catabolism
  2.  and how do they both affect the rate of chemical reaction?                                 
  3. Explain what type of colloidal solution is stained glass milk , fog 
  4. soap foam  ?

Question no. : 21


  1. What is the function of P and BaSO by Rosenmund catabolism
  2.  and how do they both affect the rate of chemical reaction?                                 
  3. Explain what type of colloidal solution is stained glass milk , fog 
  4. soap foam  ?

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