Chlorine, bromine and iodine are elements in group 7 in the periodic table - Edexcel - GCSE Chemistry - Question 6 - 2017 - Paper 1
Question 6
Chlorine, bromine and iodine are elements in group 7 in the periodic table.
(i) Chlorine is a toxic gas.
Which of the following hazard symbols would you expect to ... show full transcript
Worked Solution & Example Answer:Chlorine, bromine and iodine are elements in group 7 in the periodic table - Edexcel - GCSE Chemistry - Question 6 - 2017 - Paper 1
Step 1
Which of the following hazard symbols would you expect to see on a container filled with chlorine?
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Answer
The appropriate hazard symbol for chlorine, being a toxic gas, is symbol C, which displays a skull and crossbones. This symbol indicates that the substance is harmful or fatal if inhaled or ingested.
Step 2
Describe the appearance of bromine at room temperature.
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Answer
At room temperature, bromine appears as a reddish-brown liquid. It has a strong, pungent odor that is similar to chlorine, and it readily evaporates to form a reddish-brown gas.
