Understanding Metal Reactivity and Free State
Metals can be found either in the free state (as elements) or in the combined state (as compounds like oxides, carbonates, etc.). This depends on their reactivity.
Identifying Metals in Free State
Highly reactive metals readily lose electrons and combine with other elements. They are almost always found in combined forms in nature.
- Sodium (Na), Potassium (K), and Calcium (Ca) are highly reactive metals. They react easily with air, water, or other substances and are therefore found in combined states (like salts or oxides).
- Gold (Au) is a very unreactive or noble metal. Its low reactivity means it does not easily combine with other elements.
Because Gold is unreactive, it can exist in its pure, elemental form in nature, meaning it is found in the free state.
Therefore, Gold is the metal among the options that is found in the free state.
Similar Questions
Which of the following metals CANNOT be cut with a knife?
Which of the following will be formed when dilute hydrochloric acid is added to a beaker having copper oxide ?
Which of the following statement is incorrect regarding metals?
Which of the following metals are mixed with iron to get stainless steel?
Which of the following metals is more reactive towards dilute hydrochloric acid?
A large number of impurities present in ore, such as sand, soil, etc., is called
- Metal oxides which react with acids as well as bases are called:
- Which of the following metals does NOT react with cold or hot water?
Important Questions from Metals & Non-metals
Due to improper/indiscriminate disposal of hold and used computers or their parts, which of the following are released into the environment as e-waste?
1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium
Select the correct answer using the codes given below:
Recently, there has been a concern over the short supply of a group of elements called 'rare earth metals'. Why?
1. China, which is the largest producer of these elements, has imposed some restrictions on their export.
2. Other than China, Australia, Canada and Chile, these elements are not found in any country.
3. Rare earth metals are essential for the manufacture of various kinds of electronic items and there is a growing demand for these elements.
Which of the statements given above is/are correct?
Which of the following metals CANNOT be cut with a knife?
Which of the following will be formed when dilute hydrochloric acid is added to a beaker having copper oxide ?
Which of the following statement is incorrect regarding metals?
