Chemistry MCQs with answers Page - 154

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Q. Which of the following is a transition element?

  • (A) Sodium
  • (B) Calcium
  • (C) Iron
  • (D) Aluminium

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Q. The hybridization of carbon in ethyne (C₂H₂) is:

  • (A) sp
  • (B) sp²
  • (C) sp³
  • (D) dsp²

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Q. Which of the following is an example of a covalent compound?

  • (A) NaCl
  • (B) MgO
  • (C) H₂O
  • (D) CaCl₂

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Q. The molecular formula of benzene is:

  • (A) C₆H₆
  • (B) C₆H₁₂
  • (C) C₆H₁₄
  • (D) C₇H₈

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Q. The IUPAC name of CH₃COOH is:

  • (A) Methanoic acid
  • (B) Ethanoic acid
  • (C) Propanoic acid
  • (D) Ethanol

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Q. The bond angle in methane is:

  • (A) 90°
  • (B) 104.5°
  • (C) 109.5°
  • (D) 120°

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Q. Which of the following is a strong oxidizing agent?

  • (A) H₂
  • (B) KMnO₄
  • (C) CH₄
  • (D) NH₃

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Q. The atomic number of sodium is:

  • (A) 9
  • (B) 10
  • (C) 11
  • (D) 12

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Q. Which of the following is a reducing sugar?

  • (A) Sucrose
  • (B) Starch
  • (C) Glucose
  • (D) Cellulose

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Q. The shape of CO₂ molecule is:

  • (A) Bent
  • (B) Trigonal planar
  • (C) Linear
  • (D) Tetrahedral

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