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Bonding

Bonding

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Question 21

Which of the following physical processes involves the breaking of strong covalent bonds?

A

Sublimation of dry ice, CO2(s)→CO2(g)\text{CO}_2(\text{s}) \rightarrow \text{CO}_2(\text{g})CO2​(s)→CO2​(g)

B

Melting of quartz, SiO2(s)→SiO2(l)\text{SiO}_2(\text{s}) \rightarrow \text{SiO}_2(\text{l})SiO2​(s)→SiO2​(l)

C

Boiling of water, H2O(l)→H2O(g)\text{H}_2\text{O}(\text{l}) \rightarrow \text{H}_2\text{O}(\text{g})H2​O(l)→H2​O(g)

D

Melting of sodium chloride, NaCl(s)→NaCl(l)\text{NaCl}(\text{s}) \rightarrow \text{NaCl}(\text{l})NaCl(s)→NaCl(l)

Markscheme

Bonding Questions

  1. GCSE
  2. /Chemistry
  3. /Bonding

74 exam-style questions on OCR GCSE Chemistry Bonding. Each one has a worked solution and a mark scheme showing where the marks go.

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