1
Question
Who am I?
(a) I am found in clouds and mist.
(b) I am used in aerated drinks.
(c) I am used in an electric bulb.
(d) I form 78% of air.
(e) I am used in the production of nitric acid.
Who am I?
(a) I am found in clouds and mist.
(b) I am used in aerated drinks.
(c) I am used in an electric bulb.
(d) I form 78% of air.
(e) I am used in the production of nitric acid.
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Solution
(a) Water vapour
(b) Carbon dioxide
(c) Argon
(d) Nitrogen
(e) Nitrogen gas
(a) Water vapour
(b) Carbon dioxide
(c) Argon
(d) Nitrogen
(e) Nitrogen gas
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