The gas usually filled in the eletric h\bulb is

1 Hydrogen

2 Oxygen

3 Nitrogen

4 Carbon dioxide

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The gas usually filled in the eletric h\bulb is 1 Hydrogen 2 Oxygen 3 Nitrogen 4 Carbon ..

Answer / guest

(3) Nitrogen

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The gas usually filled in the eletric h\bulb is 1 Hydrogen 2 Oxygen 3 Nitrogen 4 Carbon ..

Answer / james kingsley

hydrogen

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