Types of substance

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Question 19

Table 1 shows some physical properties of three substances, X, Y and Z.

Table 1

Substance	Melting point ( $∘C^\circ\text{C}$ )	Electrical conductivity as a solid	Electrical conductivity when molten
X	782	Poor	Good
Y	1083	Good	Good
Z	-7	Poor	Poor

Deduce, using the information in Table 1, the structure and bonding of substances X, Y and Z. Explain the properties of each substance in terms of its structure and bonding.

[6]

Types of substance

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Question 19

Table 1 shows some physical properties of three substances, X, Y and Z.

Table 1

Substance	Melting point ( $∘C^\circ\text{C}$ )	Electrical conductivity as a solid	Electrical conductivity when molten
X	782	Poor	Good
Y	1083	Good	Good
Z	-7	Poor	Poor

Deduce, using the information in Table 1, the structure and bonding of substances X, Y and Z. Explain the properties of each substance in terms of its structure and bonding.

[6]

Types of substance

Question 19

Table 1

Types of substance Questions

Types of substance

Question 19

Table 1

Types of substance Questions