Subject

Chemistry

Class

ICSE Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
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 Multiple Choice QuestionsMatch The Following

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1.

Match the following: 

 

 

 

A. Colligative property (i)  Polysaccharide
B. Nicol prism (ii) Aldol condensation
C.  Activation energy (iii)  Ammonia
D.  Activation energy (iv) Polarimeter
E. Acetaldehyde (v) Arrhenius equation
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 Multiple Choice QuestionsFill In the Blanks

2.

Fill in the blanks by choosing the appropriate word / words from those given in the brackets:   

(zero, first, second, increased, decreased, anode, cathode, active, inactive, potassium cyanide, internal, external, dependent, independent, red, benzoic acid, benzoin, common ion effect, salt hydrolysis, alkali, potassium hydroxide.)

(i) In a galvanic cell, electrons flow from________to_________through the connecting wires.

(ii) Racemic mixtures are optically-because of________compensation.

(iii) Half life period of a _________order reaction is-of the concentration of the reactant.

(iv) Benzaldehyde when treated with an alcoholic solution of__________forms___________.

(v) Solubility of calcium oxalate is _________in the presence of ammonium oxalate because of________.

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 Multiple Choice QuestionsMultiple Choice Questions

3.

Complete the following statements by selecting the correct alternative from the choices given:   
The compound which is optically active is:

  • I-butanol

  • 2-butanol

  •  1-propanol

  •  1-propanol

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4.

Complete the following statements by selecting the correct alternative from the choices given:   
The salt which will not hydrolyse in aqueous solution is:

  • Copper sulphate

  • Sodium sulphate

  • Potassium cyanide

  • Potassium cyanide

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5.

Copper has the face centred cubic structure. The coordination number of each ion is:

  • 4

  • 12

  • 14

  • 14

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6.

Complete the following statements by selecting the correct alternative from the choices given:  
For the reaction 2S02 + 02 --->  2S03 the unit of equilibrium constant is

  • L mol-1 

  • J mol-1

  • mol L-1

  • mol L-1

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7.

The deficiency of vitamin D causes :

  • Rickets

  • Gout

  • Scurvy

  • Scurvy

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 Multiple Choice QuestionsShort Answer Type

8. Two metallic elements A and B have the following standard oxidation potentials : A = 0.40v B = - 0.80v. What would you expect if element A was added to an aqueous salt solution of element B? Give a reason for your answer.
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9. Two moles of NH3 are introduced into the one-litre flask in which it dissociates at high temperature as follows : 2NH3 (g) --> N2 (g) + 3H2 (g) Determine Kc, it at equilibrium 1 mole of NH3 remains.
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10. Give the balanced equation for the preparation of salicylaldehyde from phenol.
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