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< Chemistry Questions >

1).Buckminster fullerene is the allotropic form ?

a) Nitrogen
b) Carbon
c) Sulphur
d) None of these

2).Even though it is a non metal, graphite conducts electricity. It is due to the presence of?
a) Free electrons
b) Bonded electrons
c) Either (a) or (b)
d) None of these

3).Formula of Methane is CH4 and its succeeding member ethane is expressed as C2H6. The common difference of succession between them is ?
a) CH2
b) C2H2
c) Either (a) or (b)
d) None of these

4).IUPAC name of first member of alyne is?
a) Ethene
b) Ethyne
c) Either (a) or (b)
d) None of these

5).Out of ketonic and aldehydic group which is the terminal functional group?
a) Aldehydic group
b) Alkanes
c) Either (a) or (b)
d) None of these

6).Acetic acid is heated with a solid ‘X’ ept in a test tube. A colourless and odourless gas ‘Y’ is evolved. The gas turns lime water milky when passed through it Identify X and Y.
a) X is Sodium carbonate
b) Y is Carbon dioxide
c) Either (a) or (b)
d) None of these

7).The valency of carbon is?
a) 2
b) 3
c) 4
d) 6

8).Wohler synthesized urea from?
a) NH4CN
b) NH4CNO
c) NH4CO3
d) N2H4

9).The arrangement of atoms in graphite is?
a) Hexagonal
b) Tetrahedral
c) Octahedral
d) Square planar

10).Allotropy forms possess same property.
a) Physical
b) Chemical
c) Kinetic
d) Optical

Answers:
1). b) 2). a) 3). a) 4). b) 5). a) 6). a) 7). c) 8). b) 9). a) 10). b)