Q.1
What happen to bromine water when react with ethene?
  • Orange solution turns green
  • Purple solution turn colourless
  • Brown solution turn colourless
  • Pink solution turn colourless
Q.2
What is the general formula of an alkane
  • 2n+2
  • CnH2n+2
  • CnH2n
  • CnHn
Q.3
Select the correct name of the following formula. C6H10
  • Hexane
  • Hexene
  • Hexanol
  • Hexyne
Q.4
The major product when 2-pentanol react with concentrated sulphuric acid in 140oC is
  • 1-pentene
  • methyl ethyl acetylne
  • dimethylethylene
  • pent-2-ene
  • methylpropylacetylene
Q.5
Which compound produce more sooty flame?
  • alkene
  • alkane
Q.6
CH3CH2CH2CH=CHCH2CHWhat is the IUPAC name for the compound?
  • 2-Butene
  • 3-Heptene
  • 2-Methyl-2-Pentene
Q.7
Heptane has....
  • 5 carbons
  • 6 carbons
  • 7 carbon
  • 8 carbons
Q.8
What kind of carbide that you can used, when you want to produce propyne?
  • Ca3C3
  • Mg3C3
  • Ca2C3
  • CaC3
  • Mg2C3
Q.9
What is the name of the reaction when alkenes react with HCl?
  • Hydrogenation
  • Halogenation
  • Hydrohalogenation
  • Hydration
Q.10
Which of the following is not produced by fractional distillation of petroleum?
  • diesel fuel
  • ethanol
  • paraffin
  • petrol
Q.11
How many bonds does carbon make?
  • 1
  • 2
  • 3
  • 4
Q.12
Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.
  • isomers
  • isotopes
  • polymers
  • alkanes
Q.13
How many hydrogen atoms are in butane
  • 4
  • 6
  • 8
  • 10
Q.14
Is salt (NaCl) an organic compound?
  • Yes
  • No
  • Maybe
Q.15
What is a hydrocarbon compound?
  • Any compound with H
  • Any compound with H and C
  • Any compound with C
  • None of the above
Q.16
Propene reacts with steam to produce alcohol. What are the condition required to produce optimum product?
  • the presence of concentrated phosphoric acid as catalyst at temperature 300°C and pressure 60 atm
  • the presence of concentrated sulphuric acid as catalyst at room temperature
  • the presence of nikel as catalyst at temperature 180°C
  • the presence of ultraviolet
Q.17
Why do alkane not dissolve in water?
  • they are less dense than water
  • they have low melting points
  • they are non-polar molecule
  • they are chemically not reactive
Q.18
Which of the following statements concerning the reaction of methane with bromine under the sunlight are correct?I. It is an addition reaction.II. It is a substitution reaction.III. The end product is tetrachloromethane.IV. A similar reaction will occur if propane is used instead of methane.
  • I and IV only
  • II and III only
  • I, III and IV only
  • II, III and IV only
Q.19
What is solubility of alkane, alkene and alkyne ?
  • soluble in water, insoluble in organic solvent
  • insoluble in water , soluble in organic solvent
  • soluble in water and organic solvent
Q.20
Why alkane, alkene and alkyne cannot conduct electricity?
  • they exist as neutral molecule
  • do not have free moving ion
  • easily evaporates
  • Both A & B
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