CBSE Guess Paper Class X 2009 Chemsitry


Guess Paper – 2009

Class – X

Subject – Chemistry

CARBON & ITS COMPOUNDS


ONE MARK QUESTIONS

Q.1 Define Allotropy?

Q.2 What are various allotropes of carbon?

Q.3 What is the refractive index of Diamond?

Q.4 What allotrope of carbon is a good conductor of heat and electricity?

Q.5 What is the shape of a diamond molecule?

Q.6 What is the shape of Graphite molecule?

Q.7 Name two higher homologues of methyl alcohol?

Q.8 What is IUPAC name of Acetic acid?

Q.9 What is the IUPAC name of ethyl alcohol?

Q.10 What is vinegar?

Q.11 What is meant by Rectified Spirit?

Q.12 Define Esterification?

Q.13 Define Saponification?

Q.14 What are carbonyl compounds?

Q.15 Name the organic compounds which are giving sweet smell?

Q.16 Define Soap?

Q.17 What is the IUPAC name of neopentane?

Q.18 Write electron dot structure for CO2 ?

Q.19 What is the valency of Carbon?

Q.20 Name two elements present in carbon family?

TWO MARKS QUESTIONS


Q.1 Define Isomerism? What are the various isomers exhibited by Butane?

Q.2 What is meant by substitution reaction? Explain with an example?

Q.3 What is meant by addition reaction? Explain with an example?

Q.4 What are saturated and unsaturated hydrocarbons? Give one example of each case?

Q.5 Name three tests for detection of unsaturated hydrocarbons?

Q.6 What is meant by a functional group? What is the significance of a functional group?

Q.7 What are the structure of functional groups?

(a) Alcohols (b) Carboxylic acids

Q.8 What is meant by denatured alcohol? What is the need of Denaturing alcohol?

Q.9 Define carboxylation? Explain with an example?

Q.10 Define Combustion? What are the various types of combustion?

Q.11 Write the combustion equation for the following:[Sufficient]

(a) Ethyl alcohol (b) Acetylene

Q.12 Write the Common name for the following compounds:

(a) CH3 – CH2 - CH2 – Cl

(b) CH3 – CH2 - CH2 – OH

Q.13 Wrie the IUPAC Name for the following compounds:

(a) CH3 – CH2 - CH2 – Cl

(b) CH3 – CH2 - CH2 – OH

Q.14 What is the general formula of cyclo Alkane? Write the molecular formulae of the following compounds:

(a) Cyclo Butane (b) Cyclo Propane

Q.15 Why ionic compounds exhibits high melting and boiling points?

THREE MARKS QUESTIONS

Q.1 Define homologues series? What are the characteristic properties of homologues series? Explain with an example?

Q.2 Define saponification and Esterification. Explain with an example?

Q.3 Explain with an example

(a) Sodium metal test for alcohols.

(b) Sodium bicarbonate test for carboxylic acids.

(c) Bromine water test for unsaturated Hydrocarbons.

Q.4 Give the common name of the following compounds.

(a) CH3COCH3 (b) C2H5OH (c) CH3COCH3

Q.5 Give the IUPAC name for the following compounds.

(a) CH3COCH3 (b) CH3CH2CHO (C) CH3 – CH – CH3

Br

Q.6 What is meant by Functional group? What is the significance of a functional group?Wrrite the functional groups for the following compounds.

 

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