CBSE Guess > Papers > Question Papers > Class XII > 2005 > Chemistry > Outside Delhi Set-III

CHEMISTRY 2005 (Set-III Outside Delhi)

Except for the following questions, all the remaining questions have bees asked In Set I. and Set II.

Q. 6. Complete the following chemical equations: 2

(i) R₂ SiCI₂ + H₂O –>

(ii) NaCIO₃ (aq) + SO₂ (g) –>

Q. 10. What are biodegradable polymers? Write the structural formula of a bio-degradable polymer. 2

Q. 13. Stating the necessary reaction conditions write chemical reaction equations to obtain the following: 3

(i) Chlorobenzene from aniline

(ii) 2-bromo-4-methyl aniline from p-toluidine

(iii) Ethylamine from acetaldehyde

Q. 18. (a) Write chemical equations to illustrate each of the following reactions:

(i) Acylation reaction

(ii) Rosenmund reduction

(b) Write the IUPAC name of the following compound: 3

                              O

                              ||

CH₃ CH(Br)CH₂ C-NHCH₃      

Q. 23. What is a propellant? How are various rocket propellants classified? Give one example of each class. 3

Q. 25. (a) Answer the following queries about proteins:

(i) How are proteins related to amino acids?

(ii) How are oligopeptides different from polypeptides?

(iii) When is a protein said to be denatured?

(b) What are hormones? Give an example. Why are hormones called chemical messengers? 5

Or

 (a) Define and classify vitamins. Give at least two examples of each type.

(b) Define enzymes and comment on the specificity in action of an enzy Illustrate with an example.

Chemistry 2005 Question Papers Class XII
Delhi		Outside Delhi
	Set I		Set I
	Set II		Set II
	Set III		Set III

CBSE 2005 Question Papers Class XII
	English		Sociology
	Functional English		Psychology
	Mathematics		Philosopy
	Physics		Computer Science
	Chemistry		Entrepreneurship
	Biology		Informatics Practices
	Geography		Multimedia & Web Technology
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