Which of these substances has a giant covalent structure?
A Carbon dioxide
B Magnesium oxide
C Sulfur dioxide
D Silicon dioxide
Your answer __ - OCR Gateway - GCSE Chemistry - Question 15 - 2019 - Paper 3
Question 15
Which of these substances has a giant covalent structure?
A Carbon dioxide
B Magnesium oxide
C Sulfur dioxide
D Silicon dioxide
Your answer __
Worked Solution & Example Answer:Which of these substances has a giant covalent structure?
A Carbon dioxide
B Magnesium oxide
C Sulfur dioxide
D Silicon dioxide
Your answer __ - OCR Gateway - GCSE Chemistry - Question 15 - 2019 - Paper 3
Step 1
Identify the substances
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Answer
The options provided are:
A: Carbon dioxide (CO₂)
B: Magnesium oxide (MgO)
C: Sulfur dioxide (SO₂)
D: Silicon dioxide (SiO₂)
Step 2
Determine the type of structure
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Answer
To answer the question, we need to recognize the types of structures these substances form:
Carbon dioxide: This has a simple molecular structure.
Magnesium oxide: This has an ionic structure.
Sulfur dioxide: This also has a simple molecular structure.
Silicon dioxide: This has a giant covalent structure, where each silicon atom is covalently bonded to four oxygen atoms in a tetrahedral arrangement.
Step 3
Choose the correct option
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Answer
Given the analysis, the substance with a giant covalent structure is:
