Chemistry

Chemistry Practice Questions VI with Answers

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1) Identify the thinnest known material.

  • A) buckyball
  • B) diamond
  • C) graphene
  • D) fullerene
  • E) charcoal

2) Identify two-dimensional graphite.

  • A) buckyball
  • B) diamond
  • C) graphene
  • D) fullerene
  • E) charcoal

3) Identify the technique that determines the arrangement of atoms and measures the distance between them.

  • A) x-ray diffraction
  • B) ultraviolet
  • C) nuclear magnetic resonance
  • D) infrared
  • E) atomic absorption

4) When two waves interact with their crests and troughs in alignment is called

  • A) complimentary interference.
  • B) destructive interference.
  • C) opposing interference.
  • D) constructive interference.
  • E) alignment interference.

5) When two waves interact with the crests of one aligning with the troughs of the other is called

  • A) complimentary interference.
  • B) destructive interference.
  • C) opposing interference.
  • D) constructive interference.
  • E) alignment interference.

6) When an X-ray beam of l = 131.5 pm is incident on the surface of a copper crystal, it produces a maximum diffraction at an angle of q = 25.25 degrees. Assuming n = 1, calculate the separation between layers of copper atoms in the crystal.

  • A) 5.208 pm
  • B) 263.0 pm
  • C) 2.604 pm
  • D) 308.3 pm
  • E) 154.1 pm

7) Identify the type of solid for AgCl.

  • A) metallic atomic solid
  • B) ionic solid
  • C) nonbonding atomic solid
  • D) molecular solid
  • E) networking atomic solid

8) Identify the type of solid for ice.

  • A) metallic atomic solid
  • B) ionic solid
  • C) nonbonding atomic solid
  • D) molecular solid
  • E) networking atomic solid

9) Identify the type of solid for gold.

  • A) metallic atomic solid
  • B) ionic solid
  • C) nonbonding atomic solid
  • D) molecular solid
  • E) networking atomic solid

10) Identify the type of solid for diamond.

  • A) metallic atomic solid
  • B) ionic solid
  • C) nonbonding atomic solid
  • D) molecular solid
  • E) networking atomic solid

11) Identify the type of interaction between atoms in a nonbonding atomic solid.

  • A) polar bonding
  • B) ionic bonding
  • C) covalent bonding
  • D) hydrogen bonding
  • E) weak dispersion forces

12) An allotrope of carbon that consists of flat sheets of carbon atoms covalently bonded together as interconnected hexagonal rings is called

  • A) an octahedral.
  • B) a nanotube.
  • C) a diamond.
  • D) a fullerene.
  • E) graphite.

13) An allotrope of carbon that exists as face centered cubic structure is called

  • A) an octahedral.
  • B) a nanotube.
  • C) a diamond.
  • D) a fullerene.
  • E) graphite.

14) An allotrope of carbon that exists as interconnected rings that assume a cylindrical shape is called

  • A) an octahedral.
  • B) a nanotube.
  • C) a diamond.
  • D) a fullerene.
  • E) graphite.

15) An allotrope of carbon that exists in the shape of a ball containing 36 to 100 carbons is called

  • A) an octahedral.
  • B) a nanotube.
  • C) a diamond.
  • D) a fullerene.
  • E) graphite.

16) Geologists estimate that ________ percent of the Earth’s crust is composed of silicates.

  • A) 80
  • B) 75
  • C) 85
  • D) 90
  • E) 70

17) Identify the shape for SiO4.

  • A) tetrahedral
  • B) trigonal bipyramidal
  • C) trigonal planar
  • D) octahedral
  • E) trigonal pyramidal

18) Identify the formula for silica.

  • A) SiO4
  • B) SiO3
  • C) Si2O3
  • D) SiO2
  • E) Si3O6

19) Identify a use for polymers

  • A) beakers
  • B) bridges
  • C) furniture
  • D) wooden decks
  • E) artificial fibers

20) Which of the following represent the addition polymer formed from the compound below?

CH2=CH-CH3

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