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CHEMISTRY MCQs

Total Questions : 2589 | Page 57 of 259 pages
Question 561. Which one of the following organic compounds has fruity smell?
  1.    Alcohol
  2.    Aldehyde
  3.    Ester
  4.    Ether
 Discuss Question
Answer: Option C. -> Ester
Question 562. Chemical name of vinegar is
  1.    Acetone
  2.    Acetic acid
  3.    Formaldehyde
  4.    Ethanol
 Discuss Question
Answer: Option B. -> Acetic acid
Question 563. The most reactive among the halogens is
  1.    Fluorine
  2.    Chlorine
  3.    Bromine
  4.    Iodine
 Discuss Question
Answer: Option A. -> Fluorine
Question 564. Which one element has the lowest electronegativity value
  1.    Fluorine
  2.    Chlorine
  3.    Francium
  4.    Radium
 Discuss Question
Answer: Option C. -> Francium
Question 565. Which one element has the highest electronegativity value
  1.    Lithium
  2.    Nitrogen
  3.    Chlorine
  4.    Fluorine
 Discuss Question
Answer: Option D. -> Fluorine
Question 566. The element with highest ionization potential is
  1.    Oxygen
  2.    Carbon
  3.    Helium
  4.    Boron
 Discuss Question
Answer: Option C. -> Helium
Question 567. Which of the following has no unit?
  1.    Electronegativity
  2.    Electron affinity
  3.    Ionization energy
  4.    Excitation potential
 Discuss Question
Answer: Option A. -> Electronegativity
Question 568. Which among the following is not a characteristic of transition metals?
  1.    Tendency to gain electrons
  2.    Low electronegativity
  3.    Low ionization energy
  4.    Malleability
 Discuss Question
Answer: Option A. -> Tendency to gain electrons
Question 569. The most electronegative element among the following is
  1.    Fluorine
  2.    Sodium
  3.    Chlorine
  4.    Oxygen
 Discuss Question
Answer: Option A. -> Fluorine
Question 570. Total number of halogen elements found in the periodic table is
  1.    3
  2.    5
  3.    8
  4.    13
 Discuss Question
Answer: Option B. -> 5

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