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Course: IAL Edexcel Modular (Chemistry)
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IAL Edexcel Modular (Chemistry)

Unit 1. Structure, Bonding and Introduction to Organic Chemistry

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Unit 2. Energetics, Group Chemistry, Halogenoalkanes and Alcohols

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Unit 3. Practical Skills in Chemistry I

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Unit 4. Rates, Equilibria and Further Organic Chemistry

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Unit 5. Transition Metals and Organic Nitrogen Chemistry

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Unit 6. Practical Skills in Chemistry II

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Quiz

Covalent Bonding & Structure (IAS) – Check yourself

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Covalent Bonding & Structure (IAS) IAL Modular Chemistry check yourself quiz: free practice for IAL Edexcel Modular (chemistry). Work through this Covalent Bonding & Structure (IAS) IAL Modular Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 1.12 Covalent Bonding & Structure — Notes — IAL Chemistry Notes lesson. More practice: IAL Edexcel Modular (chemistry) — all units. Syllabus: Pearson Edexcel International A Levels.

  • Questions count: 10
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
Shape of NH3:
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
2.
Which element has the highest electronegativity?
Fluorine
Oxygen
Chlorine
Nitrogen
3.
Bond angle in H2O:
109.5°
107°
120°
104.5°
4.
A double bond consists of:
two sigma bonds
one sigma and one pi bond
two pi bonds
one ionic and one covalent bond
5.
Which molecule is non-polar?
HCl
H2O
CO2
NH3
6.
Why is graphite soft?
Weak covalent bonds within layers
Weak London forces between layers let them slide
It is ionic
It has no delocalised electrons
7.
Which statement best describes Electronegativity?
Electron pairs around a central atom repel and arrange themselves as far apart as possible to minimise repulsion.
A bond formed by head-on overlap of orbitals, with electron density along the internuclear axis.
A different structural form of the same element in the same physical state.
The ability of an atom to attract the bonding pair of electrons in a covalent bond.
8.
Which statement best describes VSEPR theory?
Electron pairs around a central atom repel and arrange themselves as far apart as possible to minimise repulsion.
A bond formed by head-on overlap of orbitals, with electron density along the internuclear axis.
A different structural form of the same element in the same physical state.
A covalent bond in which both shared electrons come from the same atom.
9.
Which statement best describes Bond length?
The ability of an atom to attract the bonding pair of electrons in a covalent bond.
A bond formed by head-on overlap of orbitals, with electron density along the internuclear axis.
The strong electrostatic attraction between a shared pair of electrons and the nuclei of the two bonded atoms.
The distance between the two nuclei of bonded atoms.
10.
Which statement best describes Sigma bond?
The ability of an atom to attract the bonding pair of electrons in a covalent bond.
A covalent bond with unequal sharing of electrons because the atoms differ in electronegativity.
The distance between the two nuclei of bonded atoms.
A bond formed by head-on overlap of orbitals, with electron density along the internuclear axis.
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Part of Unit 1. Structure, Bonding and Introduction to Organic Chemistry — see every lesson and quiz in this unit.
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