NEET MCQs with answers Page - 30

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Q. Which quantum number determines the shape of an orbital?

  • (A) Principal quantum number
  • (B) Azimuthal quantum number
  • (C) Magnetic quantum number
  • (D) Spin quantum number

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Q. The pH of a solution having H⁺ concentration 10⁻³ M is:

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 4

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Q. Which of the following gases is responsible for acid rain?

  • (A) CO₂
  • (B) O₂
  • (C) SO₂
  • (D) H₂

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Q. The geometry of NH₃ molecule is:

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

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Q. The catalyst used in the Contact process is:

  • (A) Iron
  • (B) Nickel
  • (C) Vanadium pentoxide
  • (D) Platinum

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Q. Which of the following has maximum boiling point?

  • (A) CH₄
  • (B) NH₃
  • (C) H₂O
  • (D) HF

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Q. The number of electrons present in Mg²⁺ ion is:

  • (A) 10
  • (B) 12
  • (C) 14
  • (D) 24

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Q. Which of the following is an example of a homogeneous mixture?

  • (A) Milk
  • (B) Sand and water
  • (C) Salt solution
  • (D) Smoke

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Q. The empirical formula of glucose (C₆H₁₂O₆) is:

  • (A) CHO
  • (B) CH₂O
  • (C) C₂H₄O₂
  • (D) C₃H₆O₃

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Q. Which of the following compounds exhibits hydrogen bonding?

  • (A) CH₄
  • (B) HCl
  • (C) NH₃
  • (D) CO₂
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