Board Paper of Class 12-Science 2004 Chemistry (SET 1) - Solutions
General Instructions:
(i) All questions are compulsory.
(ii) This question paper consists of four sections A, B, C and D.
Section A contains 8 questions of one mark each.
Section B is of 10 questions of two marks each.
Section C is of 9 questions of three marks each and
Section D is of 3 questions of five marks each.
(iii) There is no overall choice. However, an internal choice has been provided.
(iv) Wherever necessary, the diagrams drawn should be neat and properly labelled.
(i) All questions are compulsory.
(ii) This question paper consists of four sections A, B, C and D.
Section A contains 8 questions of one mark each.
Section B is of 10 questions of two marks each.
Section C is of 9 questions of three marks each and
Section D is of 3 questions of five marks each.
(iii) There is no overall choice. However, an internal choice has been provided.
(iv) Wherever necessary, the diagrams drawn should be neat and properly labelled.
- Question 1
Mention a large scale use of the phenomenon called ‘reverse osmosis’.
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- Question 2
Give an example of a pseudo first-order reaction.
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- Question 3
Mention two properties of acetonitrile because of which it acts as a good solvent.
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- Question 4
What are the types of lattice imperfections found in crystals?
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- Question 5
What is the principal ore of Iron?
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- Question 6
Write the chemical reaction to transform butanal to butanoic acid.
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- Question 7
Name the type of structure possessed by a unit cell of CsCl.
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- Question 8
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