Extraction of Least Reactive Metals

Q.

Among the following metals, the metal that can displace zinc from zinc sulphate solution is:

1. Silver

2. Copper

3. Magnesium

4. Lead

Q.

Is iron a transition metal?

Q.

Is lead a transition metal?

Q. The oxides of metals which are least reactive can be reduced to their respective metals by simple heating.

1. True
2. False

Q.

Name the following

A noble metal that forms an amalgam with mercury

Q. How are the less reactive metals extracted? Give an example.
[1 Mark]

Q. A noble metal is one which is inert and does not react with acids like $HCl,HN{O}_3,H_{2}S{O}_4$. Select an option with a set of two noble metals.

Q. The metals that are found in free state are generally present _______ of the activity series.

1. at the top
2. at the bottom
3. in the middle
4. above hydrogen

Q. The metals that are found in free state are generally present _______ of the activity series.

1. at the top
2. at the bottom
3. in the middle
4. above hydrogen

Q. Least reactive metals exist in their native state.

1. True
2. False

Q. Which among the following metals are available in free state in nature?

1. Iron
2. Sodium
3. Gold
4. Zinc

Q. Gold and silver cannot be extracted easily.

1. True
2. False

Q. The oxides of metals which are least reactive can be reduced to their respective metals by simple heating.

1. True
2. False

Q. Sodium is less reactive than copper.

1. True
2. False

Q.

A metal which is highly reactive can't exist in the native state.

1. True

2. False

Q. Which among the following metals are least reactive in nature?

1. Gold
2. Silver
3. Copper
4. Lead
5. Mercury
6. Sodium
7. Potassium
8. Calcium