Chem 10 night
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This document appears to be a chemistry midterm exam for night students at HUMS university. It contains 21 multiple choice questions testing knowledge of basic organic chemistry concepts like hydrocarbon functional groups (alkanes, alkenes, alkynes), properties (saturated, polarity), reactions (combustion, halogenation, hydrogenation) and isomerism. Students are asked to identify examples, properties, reactions and relationships between different organic compounds.
Chem 10 night
- 1. 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