1 (a) Dilute hydrochloric acid can be decomposed by passing a direct electric current through it using the apparatus shown in the diagram - Edexcel - GCSE Chemistry - Question 1 - 2018 - Paper 1
Question 1
1 (a) Dilute hydrochloric acid can be decomposed by passing a direct electric current through it using the apparatus shown in the diagram.
(i) Give the name of the ... show full transcript
Worked Solution & Example Answer:1 (a) Dilute hydrochloric acid can be decomposed by passing a direct electric current through it using the apparatus shown in the diagram - Edexcel - GCSE Chemistry - Question 1 - 2018 - Paper 1
Step 1
Give the name of the process in which a substance is decomposed by a direct electric current.
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Answer
The process in which a substance is decomposed by a direct electric current is known as electrolysis.
Step 2
Explain why a fume cupboard is used.
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Answer
A fume cupboard is used because chlorine gas produced during the electrolysis is toxic and poisonous. The fume cupboard helps to remove chlorine gas from the laboratory environment, thereby protecting individuals present from inhalation and exposure.
