Question

State true or false: 1. TNT is an explosive. 2. Formula of carbon monoxide is CO2 . 3. Pesticides and insecticides are chemicals used to kill pests and insects that affect the production of crops. 4. A molecule of hydrogen is made up of three atoms of hydrogen. 5. Talcum powder is made from a mineral called iron. 6. Some metals exist as gases. 7. Molecular formula of the element oxygen is O2. 8. A pure substance consists of a single type of particle. 9. The valency of nitrogen is 3. 10. The atoms of gold are different from the atoms of silver.​

Answer 1

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1. True
2. False
3. True
4. Ture
5. False
6. False
7. Ture
8. Ture
9. False
10. Ture