E-PolyLearning

316. Upon dissolving NO₂(g) in water droplets, Nitric acid (HNO₃) is formed. The acid falls in the form of acid rain causing
a. alkalinity of soil
b. acidity of soil
c. Neutralization of soil
d. temperature of soil
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Answer: (b).acidity of soil

317. Upon heating ammonium salts with a base, NH₃(g) is given off. The nature of this gas is
a. acidic
b. alkaline
c. catalyst
d. neutral (pH: 7)
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Answer: (b).alkaline

318. In order to attain the electronic configuration of a noble gas, Nitrogen needs
a. 1 electron
b. 2 electrons
c. 3 electrons
d. more than 3 electrons
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Answer: (c).3 electrons

319. By gaining electrons (e⁻), Nitrogen (N) attempts to attain the nuclear configuration of
a. Neon
b. Krypton
c. Xeon
d. Radon
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Answer: (a).Neon

320. Nitrogen (N₂) is a/an
a. unstable Electron affinity element
b. non-metallic element
c. Period 2 element
d. all of above
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Answer: (d).all of above