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Indian Navy SSR Chemical Bonding — practice questions

Explore 28 free Chemical Bonding questions in Indian Navy SSR 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 1–28 of 28.

![](https://qallery.app/diagrams/v2_bonding_seed_1/img-24.jpeg) What is the hybridisation of the central P atom in $\mathrm{PCl_5}$?Read the answer and worked solution →VSEPR stands for:Read the answer and worked solution →The order of bond strength: single < double < triple. Bond LENGTHS go in:Read the answer and worked solution →Number of π bonds in HCN: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

![](https://qallery.app/diagrams/v2_bonding_seed_1/img-24.jpeg) What is the hybridisation of the central P atom in $\mathrm{PCl_5}$?

  1. $sp^2$
  2. $sp^3d^2$
  3. $sp$
  4. $sp^3d$
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Correct answer: D. $sp^3d$

P in $\mathrm{PCl_5}$ has five bonded chlorines and no lone pair. That gives five electron domains. The hybridisation needed is $sp^3d$ (one $s$ + three $p$ + one $d$ orbital = five hybrid orbitals). The molecular geometry is trigonal bipyramidal. $sp^3d^2$ would give six domains and an octahedral geometry, which is what you see in $\mathrm{SF_6}$, not $\mathrm{PCl_5}$.

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VSEPR stands for:

  1. Valid Shell Electron Pair Rearrangement
  2. Variable Shell Electron Pair Reaction
  3. Valence Shell Electron Pair Repulsion
  4. Vacant Shell Electron Pair Resonance
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Correct answer: C. Valence Shell Electron Pair Repulsion

VSEPR theory predicts molecular geometry based on the idea that electron pairs (bonding and lone pairs) around the central atom repel each other and arrange to minimize repulsion.

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The order of bond strength: single < double < triple. Bond LENGTHS go in:

  1. REVERSE order (triple < double < single)
  2. All equal
  3. Random
  4. Same order
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Correct answer: A. REVERSE order (triple < double < single)

Stronger bonds (more shared electrons) pull atoms closer → SHORTER. **So:** triple bond < double bond < single bond in length. E.g. C≡C (120 pm), C=C (134 pm), C-C (154 pm).

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