51. Indane gas is mixture of
52. The charcoal used to decolourise brown sugar solution is
53. The major component in the LPG is
54. Domestic cooking gas consists mostly of
55. Which one of the following is known as the 'brown coal'?
56. L.P.G. is mostly liquefied
57. Which one of the following is not coal variety?
58. Which of the following is used to increase the anti-knocking property of petrol ?
59. The quality of petrol is expressed in terms of
60. Which of the following type of coal has the lowest proportion of volatile matter ?
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