Q1: Pick out the wrong statement.

ANS:C - Inhalation of mercury vapour is not harmful for human beings.

The statement "Inhalation of mercury vapor is not harmful for human beings" is incorrect. Inhalation of mercury vapor can be extremely harmful to human health. Mercury is a toxic metal that can exist in different forms, including elemental mercury vapor. When elemental mercury is vaporized, such as from spills or during industrial processes, it can be inhaled into the lungs. Once inhaled, mercury vapor can easily pass through the respiratory system and enter the bloodstream. From there, it can travel to various organs and tissues in the body, including the brain, kidneys, and central nervous system. Exposure to mercury vapor can cause a range of health effects, depending on the level and duration of exposure. Acute exposure to high levels of mercury vapor can lead to symptoms such as coughing, chest pain, difficulty breathing, nausea, vomiting, and neurological symptoms such as tremors and memory loss. Chronic exposure to lower levels of mercury vapor over time can cause long-term health problems, including neurological damage, kidney damage, respiratory issues, and even developmental disorders in children. Inhaling even small amounts of mercury vapor over time can have serious health consequences, making it essential to minimize exposure to mercury and take appropriate safety precautions in environments where mercury is present. Proper ventilation, personal protective equipment, and safe handling procedures are crucial when working with mercury-containing materials to prevent exposure and protect human health.