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Indian Navy AA (Artificer Apprentice) Chemical Bonding and Molecular Structure — practice questions

Explore 27 free Chemical Bonding and Molecular Structure questions in Indian Navy AA (Artificer Apprentice) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Chemical Bonding and Molecular Structure questions and exercises with answers

Showing questions 1–27 of 27.

The shape of methane (CH₄) is:Read the answer and worked solution →BF₃ has shape:Read the answer and worked solution →The bond order of the oxygen molecule O₂ (by molecular orbital theory) isRead 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

The shape of methane (CH₄) is:

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

CH₄ has 4 bonding pairs around C, no lone pairs. VSEPR predicts tetrahedral with bond angles 109.5°. Hybridization: sp³.

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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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The bond order of the oxygen molecule O₂ (by molecular orbital theory) is

  1. 2
  2. 1
  3. 2.5
  4. 3
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Correct answer: A. 2

MO config gives bond order = (bonding − antibonding)/2 = (8−4)/2 = 2, consistent with the O=O double bond.

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More Chemistry topics

Chemical EquilibriumAlcohols Phenols EthersAlkenesOrganic ChemistryPolymersAtoms and MoleculesClassification of ElementsS Block Elements