71. Tartaric acid is a component of
72. The gas emerged through the cigarette lighter is
73. Which compound has the chemical formula CHCl3 whose melting point is 209 K?
74. In which among the following molecules is the distance between two adjacent carbon atoms largest?
75. What is the name of the compound CH3 - CH3?
76. Select one which is different from the IUPAC names given below.
77. Consider the following statements.
1. Methane is also known asmarsh gas.
2. The main component of the natural gas is methane.
3. The main component of the gobar gas is methane.
Which of the statements given above are correct?
1. Methane is also known asmarsh gas.
2. The main component of the natural gas is methane.
3. The main component of the gobar gas is methane.
Which of the statements given above are correct?
78. Which of the following is used to remove rust stains on cloth?
79. A mixture of carbon monoxide and hydrogen, which is a starting material for manufacturing a number of organic compound is
80. Wood spirit is
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