61. Which of the following is an aldehyde?
62. Choose the wrong set of molecular formulas - IUPAC name - common name from the following options.
63. . . . . . . . . the compound has -OH as a functional group.
64. Each carbon atom in ethane is bonded.
65. Which of the following pairs of acid and the substance in which it is found is incorrectly matched?
66. Which of the following compounds are also known as aliphatic compounds?
67. Acidic hydrogen is present in
68. The colours are added to the alcohol to make it blue, so that it can be easily identified. This alcohol is called . . . . . . . . alcohol.
69. The chief constituent of natural gas is
70. The formula of C6H14 . . . . . . . . hydrocarbons indicate-
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