Chemistry mid exam for night students @HUMS

Name__________-_________ Grade and Section___________

I.Write true if the statement is correct unless False

_____1.Chlorination of methane is reaction of methane with chlorine.

_____2.Cycloalkanes are saturated hydrocarbons.

_____3.Combustion is a reaction with oxygen.

_____4.Alkanes are major constituents of natural gas.

_____5.Alkanes are saturated hydrocarbon.

_____6.Chemical property of alkanes and alkenes are completely the same.

_____7.Methane can be obtained by fractional distillation of petroleum.

_____8.Alkenes are nonpolar.

_____9.Alkenes are soluble in water.

_____10.Chain isomerism is due to difference in position of double bond in the carbon chain.

____11.Alkanes A.Ethyne

____12.Alkenes B.Olefins

____13.Alkynes C.Benzene

____14.Aromatic Hydrocarbon D.Paraffins

____15.Alcohols E.Ethanol

__16.Reaction of halogenated alkanes with sodium is;A.Hydrogenation B.Combustion C.Wurtz D.all

__17.All alcohols have;A.H- B.OH C.Ethene D.Water

__18.One is monohydric;A.CH3OH B.CH3OOH C.CH3CH2OOH

__19.Preparation of alkene by adding hydrogen is;A.Halogenation B.Hydrogenation C.Hydration

__20.If two similar groups are on the same side in isomerism we say;A.Cis B.Trans C.Position

__21.C2H4 is ;A.Ethene B.Propene C.Alkane D.Alkene