A. sodium B. nitrogen C. sodium dioxonitrate (III) D. sodium oxide Correct Answer: Option C - sodium dioxonitrate (III)
A. precipitate aluminium hydroxide B. lower the melting point of aluminium oxide C. act as raw materials D. act as…
A. pig iron B. wrought iron C. cast iron D. iron pyrites Correct Answer: Option B - wrought iron
A. CO2 B. SO2 C. NO2 D. CO Correct Answer: Option C = NO2
A. Zinc B. Copper C. Barium D. Calcium Correct Answer: Option D - Calcium
A. Graphite B. Diamond C. Lampblack D. Soot Correct Answer: Option A - Graphite
A. chlorine B. ozone C. carbon (IV) oxide D. hydrogen sulphide Correct Answer: Option B - ozone
A. producer gas B. natural gas C. synthetic gas D. industrial gas Correct Answer: Option C - synthetic gas
A. an oxidizing agent B. a dehydrating agent C. a bleaching agent D. a precipitating agent Correct Answer: Option D…
A. NO B. N2O C. NO2 D. N2O4 Correct Answer: Option A - NO