1) Ethers are formed by the attachment of a. two alkyl groups to same oxygen atom b. two alkyl group to different oxygen atoms c. three alkyl groups to one oxygen atom d. four alkyl groups to one oxygen atom
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2) Compounds in which one hydrogen atom of an alkane is substituted by one halogen atom are called a. halo alkanes b. phenols c. ethers d. alcohols
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3) Methyl has the molecular formula a. CH4 b. CH3 c. CH d. CH2
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4) Process in which coal is heated in the absence of air at high temperature and converted into coal gas, coal tar, and coke is called a. destructive distillation b. distillation c. burning of coal d. burning of oxygen
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5) Which of the following is a group of atoms obtained by removing one hydrogen atom from an alkane? a. alkene b. alkyne c. functional group d. alkyl radical
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6) If we remove one hydrogen (H) atom from an alkane (saturated hydrocarbon), we get a. alkyl group b. alkene group c. alkyne group d. aldehyde group
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7) Organic compounds include a. alkali metals b. alkaline earth metals c. hydrocarbons and their derivatives d. halogens
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8) Methanoic acid is an example of a. aldehydes b. ketones c. carboxylic acids d. ethers
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9) An alkane with molecular formula C5H12 is called a. butane b. pentane c. hexane d. heptane
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10) Which of the following is widely used in the oxy-acetylene welding and cutting metals? a. ethylene b. acetylene c. phenol d. methanol
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