Match List- I with List- II and select the correct answer from the code given below the lists : List-I (Fuel Gases) A. CNG B. LPG C. Coal gas D. Water gas List-II (Major Constituents) 1. Carbon monoxide, Hydrogen 2. Butane, Propane 3. Methane, Ethane 4. Hydrogen, Methane, Carbon monoxide

Which one among the following statements for the gases mentioned below is not correct ?

Consider the following statements and select the correct one.

Consider the following which can be found in the ambient atmosphere: 1. Soot 2. Sulphur hexafluoride 3. Water vapour Which of the above contribute to the warming up of the atmosphere?

Which one of the following is the colour of hydrogen gas?

Which one of the following elements is a non-metal but is lustrous ?