Consider the following statements with respect to fuels of launch Vehicles 1 Green Propellants refer...........

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Consider the following statements with respect to fuels of launch Vehicles:

1.Green Propellants refers to the fuels obtained from biodegradable wastes and will replace kerosene as the main fuel.

2.The Indian launch vehicles have been using kerosene and liquid hydrogen as the chief fuel since the inception of space programme.

3.Hydrazine has been recommended as the most suitable alternative fuel in launch vehicles which is environment friendly as well as cost effective.

Which of the statements given above are correct?

1 and 2 only

2 and 3 only

1 and 3 only

None of the above

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Explanation:

2 and 3 only

Statement 1 is incorrect. Green propellants typically refer to propellants that are more environmentally friendly and produce fewer harmful byproducts compared to traditional rocket fuels. They are not necessarily obtained from biodegradable wastes. While research is ongoing to develop greener propellants, they are not yet widely used to replace kerosene as the main fuel in launch vehicles.

Statement 2 is correct. Indian launch vehicles have indeed been using kerosene and liquid hydrogen as chief fuels since the inception of the space program.

Statement 3 is correct. Hydrazine has been recommended as a suitable alternative fuel in launch vehicles due to its environmental friendliness and cost-effectiveness compared to traditional fuels.

Therefore, the correct option is 2. 2 and 3 only.

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