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MCQs

Total Questions : 425 | Page 42 of 43 pages
Question 411. In ethane (C₂H₄), the π-bond is formed between
  1.    C-C atoms
  2.    C-H atoms
  3.    H-H atoms
  4.    no π-bond is formed.
 Discuss Question
Answer: Option C. -> H-H atoms
Answer: (c).H-H atoms
Question 412. Electrons shared in double covalent bond are
  1.    Two
  2.    Three
  3.    Six
  4.    Two pairs of electrons
 Discuss Question
Answer: Option D. -> Two pairs of electrons
Answer: (d).Two pairs of electrons
Question 413. In C₂H₂ Covalent bond is present
  1.    Single
  2.    Double
  3.    Triple
  4.    Multiple
 Discuss Question
Answer: Option C. -> Triple
Answer: (c).Triple
Question 414. A π-bond is
  1.    symmetrical
  2.    non-symmetrical
  3.    cylindrical
  4.    none of above
 Discuss Question
Answer: Option B. -> non-symmetrical
Answer: (b).non-symmetrical
Question 415. The number of single unpaired electron in non-metals are
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 416. The geometry of bonds in ice is loose structure
  1.    Cage-like
  2.    Tetrahedral
  3.    Planar
  4.    Linear
 Discuss Question
Answer: Option A. -> Cage-like
Answer: (a).Cage-like
Question 417. When water freezes it occupies more space
  1.    6%
  2.    7%
  3.    8%
  4.    9%
 Discuss Question
Answer: Option D. -> 9%
Answer: (d).9%
Question 418. Alcohols dissolve in water due to
  1.    Similar structure
  2.    Attractive forces
  3.    Hydrogen bonding
  4.    Cohesive forces
 Discuss Question
Answer: Option C. -> Hydrogen bonding
Answer: (c).Hydrogen bonding
Question 419. The hydrogen bond energy depends upon the
  1.    Ionization energy
  2.    Electron affinity
  3.    Electronegativity
  4.    Electro positivity
 Discuss Question
Answer: Option C. -> Electronegativity
Answer: (c).Electronegativity
Question 420. The strength of hydrogen bond depends upon
  1.    Electrons
  2.    Bond pair of electrons
  3.    Lone Pair of electrons
  4.    None of above
 Discuss Question
Answer: Option C. -> Lone Pair of electrons
Answer: (c).Lone Pair of electrons

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