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Most important question class-12th (Chemistry)

Important question class-12th (2019-20)

(1) Write difference between the Molecularity and order of Reaction?

(2) Write difference between Ideal and non-ideal solutions?

(3)Why is Sky blue in colour?

(4) What is half life period of Reaction? Calculate the half life of first order reaction?

(5) What is Corrosion? Explain its mechanism.Write three factor affecting corrosion and two prevention of corrosion.

(6) What is electrochemical cell? Explain its working process giving an example of Daniel cell?

(7) What is Raoult's law?

(8) Write difference between aldehydes and ketones?

(9) What is co-ordination number?

(10) Write Henry's law related to Solubility?

(11) What are Chelates?

(12) What is dialysis?

(13) What is emulsion?

(14) What do you mean by Coagulation?

(15) Explain Dry cell with diagram?

(16) Explain Effective atomic number?

(17) What is Standard hydrogen electrode?How it is prepared?

(18) What is Arrehenius equation? Explain and write it's application?



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