Read the passage carefully and answer the following questions from (i) to (v).

Metals exhibit their chemical properties as per their electron releasing tendency of atoms. The greater the tendency, the more is the reactivity. Metals react with oxygen, water, hydrogen, acids, etc. They act as reducing agents because they can lose electrons. Some reactions metals undergo are given in this Table:

1. Metal + Oxygen → Metal oxide
2. Metal + Water → Metal Hydroxide + Hydrogen
3. Metal + Acid (dil.) → Metal Salt + Hydrogen
4. Metal A + Salt Solution of Metal B → Salt solution of A + B (Displacement)

(i) Some metals react vigorously with oxygen so for safety they are kept in kerosene to prevent accidental fires. Which metals are these?

Read the passage carefully and answer the following questions from (i) to (v).

Metals exhibit their chemical properties as per their electron releasing tendency of atoms. The greater the tendency, the more is the reactivity. Metals react with oxygen, water, hydrogen, acids, etc. They act as reducing agents because they can lose electrons. Some reactions metals undergo are given in this Table:

1. Metal + Oxygen → Metal oxide
2. Metal + Water → Metal Hydroxide + Hydrogen
3. Metal + Acid (dil.) → Metal Salt + Hydrogen
4. Metal A + Salt Solution of Metal B → Salt solution of A + B (Displacement)

(ii) Which of the following pairs will undergo displacement reaction:

Read the passage carefully and answer the following questions from (i) to (v).

Metals exhibit their chemical properties as per their electron releasing tendency of atoms. The greater the tendency, the more is the reactivity. Metals react with oxygen, water, hydrogen, acids, etc. They act as reducing agents because they can lose electrons. Some reactions metals undergo are given in this Table:

1. Metal + Oxygen → Metal oxide
2. Metal + Water → Metal Hydroxide + Hydrogen
3. Metal + Acid (dil.) → Metal Salt + Hydrogen
4. Metal A + Salt Solution of Metal B → Salt solution of A + B (Displacement)

(iii) Identify four metals P, Q, S, T with the hints given below:

P forms basic oxides
Q forms amphoteric oxides
S oxide dissolves in water to form alkali
T does not react with water

Read the passage carefully and answer the following questions from (i) to (v).

Metals exhibit their chemical properties as per their electron releasing tendency of atoms. The greater the tendency, the more is the reactivity. Metals react with oxygen, water, hydrogen, acids, etc. They act as reducing agents because they can lose electrons. Some reactions metals undergo are given in this Table:

1. Metal + Oxygen → Metal oxide
2. Metal + Water → Metal Hydroxide + Hydrogen
3. Metal + Acid (dil.) → Metal Salt + Hydrogen
4. Metal A + Salt Solution of Metal B → Salt solution of A + B (Displacement)

(iv) The metal which does not react with dilute HCl is:

Read the passage carefully and answer the following questions from (i) to (v).

Metals exhibit their chemical properties as per their electron releasing tendency of atoms. The greater the tendency, the more is the reactivity. Metals react with oxygen, water, hydrogen, acids, etc. They act as reducing agents because they can lose electrons. Some reactions metals undergo are given in this Table:

1. Metal + Oxygen → Metal oxide
2. Metal + Water → Metal Hydroxide + Hydrogen
3. Metal + Acid (dil.) → Metal Salt + Hydrogen
4. Metal A + Salt Solution of Metal B → Salt solution of A + B (Displacement) 

(v) Food cans are coated with tin and not with zinc because:

Read the passage carefully and answer the following questions from (i) to (v):

All metals do not react with oxygen at the same rate. Different metals show different reactivities towards oxygen. Almost all metals combine with oxygen to form metal oxides. Metal oxides are basic in nature but some metal oxides, such as aluminium oxide, zinc oxide, etc. show both acidic as well as basic behaviour. Most metal oxides are insoluble in water but some like Sodium oxide and Potassium oxide dissolve in water to produce alkalis.

(i) Arrange the metals in the correct order of their reactivity.

Read the passage carefully and answer the following questions from (i) to (v):

All metals do not react with oxygen at the same rate. Different metals show different reactivities towards oxygen. Almost all metals combine with oxygen to form metal oxides. Metal oxides are basic in nature but some metal oxides, such as aluminium oxide, zinc oxide, etc. show both acidic as well as basic behaviour. Most metal oxides are insoluble in water but some like Sodium oxide and Potassium oxide dissolve in water to produce alkalis.

(ii) Why does the magnesium ribbon need to be cleaned before burning it in air?

Read the passage carefully and answer the following questions from (i) to (v):

All metals do not react with oxygen at the same rate. Different metals show different reactivities towards oxygen. Almost all metals combine with oxygen to form metal oxides. Metal oxides are basic in nature but some metal oxides, such as aluminium oxide, zinc oxide, etc. show both acidic as well as basic behaviour. Most metal oxides are insoluble in water but some like Sodium oxide and Potassium oxide dissolve in water to produce alkalis.

(iii) What is the reason for the surface of aluminium turns into dull colour after few days as shown in the figure?

Read the passage carefully and answer the following questions from (i) to (v):

All metals do not react with oxygen at the same rate. Different metals show different reactivities towards oxygen. Almost all metals combine with oxygen to form metal oxides. Metal oxides are basic in nature but some metal oxides, such as aluminium oxide, zinc oxide, etc. show both acidic as well as basic behaviour. Most metal oxides are insoluble in water but some like Sodium oxide and Potassium oxide dissolve in water to produce alkalis.

(iv) Although metals form basic oxides, which of the following metals form an amphoteric oxide?

Read the passage carefully and answer the following questions from (i) to (v):

All metals do not react with oxygen at the same rate. Different metals show different reactivities towards oxygen. Almost all metals combine with oxygen to form metal oxides. Metal oxides are basic in nature but some metal oxides, such as aluminium oxide, zinc oxide, etc. show both acidic as well as basic behaviour. Most metal oxides are insoluble in water but some like Sodium oxide and Potassium oxide dissolve in water to produce alkalis.

(v) Aluminium oxide reacts in the following manner with bases. The resultant product is:

$A{l}_2{O}_3+2NaOH⟶$