Question

OBJECTIVE!
1. Fill in the blanks:
(a) ............ is the most abundant inert ES
present in air
(b) Oxides of sulphur and nitrogen combine
with rain water to form and
which cause
(c) ............. and............ are the most common
air pollutants.
(d) ... discovered the oxygen gas.
(e) Oxygen occupies about . .. of air by
volume.​

Answer 1

Answer:

1.(a) Argon

(b) Acid Rain

(c) Nitrogen Dioxide And Sulphur Dioxide

(d) Carl Wilhelm Scheele

(e) 21%

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