Which element is known for being a dark reddish-brown liquid with a strong odor?

Which element is known for being a dark reddish-brown liquid with a strong odor?

• A. Chlorine
• B. Bromine
• C. Iodine
• D. Fluorine

Answer: (B)

The element that is characterized as a dark reddish-brown liquid with a strong odor is bromine. Bromine is unique among the halogens as it is the only one that is a liquid at room temperature; it is also highly volatile and has a distinctive, irritating odor. These properties make bromine easily identifiable. Chlorine, while a gas at room temperature, is a pale yellow-green color and does not appear as a liquid unless under pressure or at low temperatures. Iodine exists primarily as a solid at room temperature and sublimates to a violet gas, which also differs significantly in appearance and state. Fluorine, being a gas at room temperature, is pale yellow in color and has its own unique corrosive and toxic properties, distinct from those of bromine. Thus, bromine's dark reddish-brown liquid form and strong odor distinctly mark it as the correct answer to this question.

The element that is characterized as a dark reddish-brown liquid with a strong odor is bromine. Bromine is unique among the halogens as it is the only one that is a liquid at room temperature; it is also highly volatile and has a distinctive, irritating odor. These properties make bromine easily identifiable.

Chlorine, while a gas at room temperature, is a pale yellow-green color and does not appear as a liquid unless under pressure or at low temperatures. Iodine exists primarily as a solid at room temperature and sublimates to a violet gas, which also differs significantly in appearance and state. Fluorine, being a gas at room temperature, is pale yellow in color and has its own unique corrosive and toxic properties, distinct from those of bromine. Thus, bromine's dark reddish-brown liquid form and strong odor distinctly mark it as the correct answer to this question.