Toxic

The video tutorial discusses toxic substances, including compounds of lead and mercury, various organic compounds, and chemicals produced by certain bacteria. It explains how these substances are identified and categorized through chemical means.

What is the primary method used to identify toxic substances?

• Chemical means

• Biological analysis

• Genetic testing

• Physical observation

Which of the following is a known toxic substance?

• Lead compounds

• Water

• Carbon dioxide

• Oxygen

Mercury is classified as what type of substance?

• Neutral

• Toxic

• Beneficial

• Non-toxic

Which type of compounds are considered toxic according to the video?

• Inorganic compounds

• Organic compounds

• Synthetic compounds

• Mineral compounds

What is a source of toxic chemicals mentioned in the video?

• Plants

• Viruses

• Fungi

• Certain bacteria