Practicing Success
Which of the following is not poisonous? |
H2O H2S H2Se H2Te |
H2O |
The correct answer is option 1. \(H_2O\). \(H_2O\), or water, is a colorless, odorless, and tasteless liquid that is essential for life. It is not poisonous and is actually very important for our health. \(H_2S\), \(H_2Se\), and \(H_2Te\) are all poisonous gases. \(H_2S\) is known as hydrogen sulfide, and it is a colorless gas with a strong odor of rotten eggs. It is very toxic and can be fatal if inhaled. \(H_2Se\) is known as hydrogen selenide, and it is a colorless gas with a pungent odor. It is also very toxic and can be fatal if inhaled. \(H_2Te\) is known as hydrogen telluride, and it is a colorless gas with a garlic-like odor. It is also very toxic and can be fatal if inhaled. Therefore, the only non-poisonous substance in the list is \(H_2O\). |