Question

Two colourless gases react to form a reddish brown gas

Answer 1

Answer:

There are basically two coloured gases - chlorine and nitrogen dioxide. Since this gas is formed two gases one of which being oxygen, the gas is Nirtogen Dioxide. Observation - the gas formed is Reddish brown in colour

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Answer 2

Answer:

nitrogen and oxygen are the two colours gases which react to form a reddish brown gas that is Nitrogen dioxide

Explanation:

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