With reference to LNG (Liquefied Natural Gas), which among the following observations is / are correct?
1.LNG is odourless and colourless
2.LNG is generally non-corrosive and non-toxic
3.The weight of certain volume of LNG is around half of weight of same volume of water
Choose the correct option from the codes given below:

Answer: [D] 1, 2 & 3

LNG is liquefied natural gas. Natural gas is a mixture of hydrocarbons, composed primarily of methane. When natural gas is cooled to a temperature of approximately – 260 degree F at atmospheric pressure, it condenses to a liquid called liquefied natural gas (LNG). One volume of this liquid takes up about 1/600th the volume of natural gas at a stove burner tip. LNG weighs about 45% as much as water of a similar volume. LNG is odourless, colourless, non-corrosive, and non-toxic. Natural gas is a naturally occurring gas mixture composed primarily of methane (typically, at least 90%), but may also contain ethane, propane and heavier hydrocarbons. LNG does not have an odor. However, manufacturers often add traces of a substance like T-butyl mercaptan to give it a foul smell.

This question is a part of GKToday's Integrated IAS General Studies Module