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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

A soft, white waxy solid melts over a temperature range from 120 °C to 130 °C. It doesn’t dissolve in water and it doesn’t conduct electricity. These properties are consistent with its identity as

  1. (a) a network solid
  2. (b) an ionic solid
  3. (c) an amorphous solid
  4. (d) a metallic solid

Interpretation Introduction

Interpretation:

The property consistent with given types of solid has to be identified.

Concept introduction:

Metallic solid:

Metallic solid is high melting points, range from soft and malleable to very hard, which are good conductors of electricity.

Ionic solid:

Ionic solid has very high melting points

Ionic solids are brittleness and poor conductors in the solid state.

Molecular solid:

Molecular solids melt closer to 300 °C, which is can be either ductile or brittle. Many molecular solids have a large band gap between the valence band and conduction band.

Network solid:

Network solid has very high melting point, which are very hard.

Network solid doesn't conduct electricity, which are insoluble in water and organic solvents.

Amorphous solid:

In these solids particles are randomly arranged in three dimensions, does not have sharp melting points, which forms due to sudden cooling of liquid.

Alloy solid:

Alloy solid is high melting points, which are good conductors of electricity.

Explanation

Reason for the correct answer

Option (c) is the correct answer, because it is waxy and soft solid, does not have sharp melting point, does not dissolve in water, and does not conduct the electricity.

Reason for the incorrect answer

This i...

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