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MCQs

Total Questions : 345 | Page 8 of 35 pages
Question 71. Electric current produces plasma and light when passed through
  1.    neon gas
  2.    sulphur
  3.    hydrogen
  4.    oxygen
 Discuss Question
Answer: Option A. -> neon gas
Answer: (a).neon gas
Question 72. In equation p=xP(total pressure of gas) x is
  1.    molar mass of gas
  2.    mole fraction of gas
  3.    molarity of gas
  4.    molecularity of gas
 Discuss Question
Answer: Option A. -> molar mass of gas
Answer: (a).molar mass of gas
Question 73. Plasma is neutral
  1.    microscopically
  2.    macroscopically
  3.    on small scale
  4.    on large scale
 Discuss Question
Answer: Option B. -> macroscopically
Answer: (b).macroscopically
Question 74. Gas chlorine has high value of constant
  1.    b
  2.    a
  3.    c
  4.    d
 Discuss Question
Answer: Option A. -> b
Answer: (a).b
Question 75. One mole of gas at ideal conditions have volume of
  1.    22.414dm cube
  2.    24.14 dm3
  3.    37.14dm cube
  4.    44.14 dm cube
 Discuss Question
Answer: Option A. -> 22.414dm cube
Answer: (a).22.414dm cube
Question 76. Upon dissolving NO₂(g) in water droplets, Nitric acid (HNO₃) is formed. The acid falls in the form of acid rain causing
  1.    alkalinity of soil
  2.    acidity of soil
  3.    Neutralization of soil
  4.    temperature of soil
 Discuss Question
Answer: Option B. -> acidity of soil
Answer: (b).acidity of soil
Question 77. Upon heating ammonium salts with a base, NH₃(g) is given off. The nature of this gas is
  1.    acidic
  2.    alkaline
  3.    catalyst
  4.    neutral (pH: 7)
 Discuss Question
Answer: Option B. -> alkaline
Answer: (b).alkaline
Question 78. In order to attain the electronic configuration of a noble gas, Nitrogen needs
  1.    1 electron
  2.    2 electrons
  3.    3 electrons
  4.    more than 3 electrons
 Discuss Question
Answer: Option C. -> 3 electrons
Answer: (c).3 electrons
Question 79. By gaining electrons (e⁻), Nitrogen (N) attempts to attain the nuclear configuration of
  1.    Neon
  2.    Krypton
  3.    Xeon
  4.    Radon
 Discuss Question
Answer: Option A. -> Neon
Answer: (a).Neon
Question 80. Nitrogen (N₂) is a/an
  1.    unstable Electron affinity element
  2.    non-metallic element
  3.    Period 2 element
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above

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