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(Download) CBSE X Chemistry (Carbon & its Compounds) Guess Paper: 2012

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Guess Papers – 2012
Class – X
Subject – Chemistry (Carbon & its Compounds)

1. Butane has ________ number of covalent bonds.
a) 6
b) 9
c) 11
d) 13

2. Ethanol reacts with sodium to give
a) Sodium Chloride
b) Sodium Carbonate
c) Sodium Bromide
d) Sodium Ethoxide

3. Combustion of Methane release
a) CO2
b) H2O
c) Energy
d) All

4. Name the functional group of the symbol >C=O
a) Ketone
b) Aldehydes
c) Alcohols
d) Carboxylic Acids

5. Covalent bonds are formed by _________ of _________.
a) Sharing, Electron
b) Donating, Electron
c) Both
d) None