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Indian Navy Pilot Chemical Bonding — practice questions

Explore 30 free Chemical Bonding questions in Indian Navy Pilot Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Chemical Bonding questions and exercises with answers

Showing questions 1–30 of 30.

An ELECTROVALENT (ionic) bond is formed when:Read the answer and worked solution →A COVALENT bond is formed by:Read the answer and worked solution →BF₃ has shape:Read the answer and worked solution →Effective nuclear charge (Z_eff) felt by an electron in 2p orbital of nitrogen, given Z = 7, screening constant σ ≈ 3.25:Read the answer and worked solution →The bond in N2 (nitrogen molecule) is a:Read the answer and worked solution →The hybridisation of carbon in C2H4 (ethylene, with a C=C double bond) is:Read the answer and worked solution →Match each scientist to their contributionRead the answer and worked solution →Ionic or covalent?Read the answer and worked solution →Complete the driver of bond formationRead the answer and worked solution →Single, double and triple bondsRead the answer and worked solution →True or false: Lewis structuresRead the answer and worked solution →Complete the definition of resonanceRead the answer and worked solution →Tap every bond parameter the chapter namesRead the answer and worked solution →True or false: ionic solidsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Bonded pair or lone pair?Read the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Order the reasoning: why resonance is neededRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →True or false: what bond parameters affectRead the answer and worked solution →Bond parameters in useRead the answer and worked solution →Which parameter answers this?Read the answer and worked solution →True or false: resonanceRead the answer and worked solution →Order the steps: draw a Lewis structureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reason: structureRead the answer and worked solution →Flip and pair: parameter with what it measuresRead the answer and worked solution →

Worked practice questions

An ELECTROVALENT (ionic) bond is formed when:

  1. Electrons are shared
  2. No bonding occurs
  3. Hydrogen bridges are formed
  4. One atom TRANSFERS electrons to another
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Correct answer: D. One atom TRANSFERS electrons to another

In ionic bonding, a metal atom transfers one or more electrons to a non-metal atom, forming a cation and anion which then attract electrostatically. Example: NaCl, MgO.

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A COVALENT bond is formed by:

  1. SHARING of electron pairs
  2. Magnetic force
  3. Gravitational attraction
  4. Transfer of electrons
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Correct answer: A. SHARING of electron pairs

In covalent bonding, atoms share one or more pairs of electrons to achieve stable noble-gas configuration. Found in molecules like H₂, O₂, H₂O, CO₂.

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BF₃ has shape:

  1. Trigonal planar
  2. Linear
  3. Tetrahedral
  4. Square planar
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Correct answer: A. Trigonal planar

BF₃: B has 3 bond pairs, no lone pairs → sp² hybridization. **Geometry:** trigonal planar with bond angle 120°. (B is exceptional — happy with 6 electrons.)

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