Selected MCQ

Current Question
Which element has highest electronegativity?
  • A. Oxygen
  • B. Fluorine
  • C. Nitrogen
  • D. Chlorine
Correct Answer: B
Explanation:
Fluorine is most electronegative element.
Related Question 1
Which species has highest electronegativity?
  • A. Oxygen
  • B. Fluorine
  • C. Chlorine
  • D. Nitrogen
Correct Answer: B
Explanation:
Fluorine is most electronegative.
Related Question 2
Which element has highest ionization energy?
  • A. Na
  • B. Mg
  • C. Ar
  • D. K
Correct Answer: C
Explanation:
Noble gases have full shells and high ionization energy.
Related Question 3
Which species has highest oxidation state?
  • A. MnO₂
  • B. Mn₂O₇
  • C. MnO
  • D. Mn₃O₄
Correct Answer: B
Explanation:
Mn in Mn₂O₇ is +7.
Related Question 4
Which biome has highest rainfall?
  • A. Desert
  • B. Tundra
  • C. Rainforest
  • D. Grassland
Correct Answer: C
Explanation:
Rainforests receive heavy rainfall.
Related Question 5
Which molecule has highest dipole moment?
  • A. CO₂
  • B. NH₃
  • C. CH₄
  • D. BF₃
Correct Answer: B
Explanation:
NH₃ is polar with lone pair.