71. Consider the following statements.
1. The simplest hydrocarbon is methane (CH4).
2. Hydrocarbons support life directly as carbohydrates, proteins, nucleic acids
3. Benzene is unsaturated cyclic hydrocarbon.
Which of the statements given above are correct?
1. The simplest hydrocarbon is methane (CH4).
2. Hydrocarbons support life directly as carbohydrates, proteins, nucleic acids
3. Benzene is unsaturated cyclic hydrocarbon.
Which of the statements given above are correct?
72. . . . . . . . . the compound has a ring-carbon chain structure.
73. The molecular formulas of methane, ethane and butane are CH4, C2H6 and C4H10, respectively. What would be their empirical formulas respectively?
74. The gas produced through the pouring water on the calcium carbide is
75. Table granulated sugar is known as . . . . . . . .
76. Unsaturated hydrocarbons containing one or more double-bonds are called . . . . . . . .?
77. Compounds having same number and kind of atoms but different arrangement of atoms in their molecules are called
78. Which of the following contains Citric acid?
79. Which organic compounds have suffix 'al'?
80. Consider the following chemicals.
1. Benzene
2. Carbon tetrachloride
3. Sodium carbonate
4. Trichloroethylene
Which of the above is/are used as dry cleaning chemicals?
1. Benzene
2. Carbon tetrachloride
3. Sodium carbonate
4. Trichloroethylene
Which of the above is/are used as dry cleaning chemicals?
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