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1) Which of the following is used for artificial ripening of fruits? a. ethylene b. acetylene c. phenol d. methanol
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2) Alcohols (CnH2n+1OH) are formed by the attachment of a. OH group to hydrocarbon chain b. HX group to hydrocarbon chain c. O to hydrocarbon chain d. H to hydrocarbon chain
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3) The general formula for amines is a. R-CH2 b. R2CH c. R-NH2 d. R-COOH
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4) An alkane with molecular formula C7H16 is called a. butane b. pentane c. hexane d. heptane
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5) What is the general formula of alkenes? a. CnH2n+2 b. CnH2n c. CnH2n-2 d. CnHn
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6) IUPAC names are also called a. systematic names b. hydrocarbon names c. scientific names d. class names
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7) How many bonding electrons are present in the valence shell of carbon? a. two b. three c. four d. five
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8) An alkane with molecular formula C6H14 is called a. butane b. pentane c. hexane d. heptane
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9) As the number of carbon atoms increases, the number of possible isomers a. increases b. decreases c. remains same d. becomes zero
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10) What is the term used for unsaturated hydrocarbons containing at least one carbon-carbon double bond? a. alkanes b. alkenes c. alkynes d. none of above
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