Alkali Metals and Their Properties

The video tutorial introduces alkali metals, focusing on a specific metal, referred to as 'capital A', which forms a compound 'B' with a molecular mass of 40 when reacting with water. The tutorial further explores the properties of compound B and discusses the elements in Group 1 of the periodic table, highlighting their characteristics and significance in chemistry.

What is the molecular mass of the compound formed when the alkali metal reacts with water?

• 20

• 50

• 30

• 40

What is the significance of the term 'capital A' in the context of the video?

• It refers to a chemical reaction

• It is a periodic table group

• It denotes an alkali metal

• It is the name of a compound

To which group in the periodic table does the alkali metal belong?

• Group 4

• Group 1

• Group 3

• Group 2

Which of the following is a characteristic of alkali metals?

• They are gases at room temperature

• They are non-reactive

• They are found in group 1 of the periodic table

• They have high melting points

Which of the following is NOT true about the alkali metal discussed?

• It is a non-metal

• It forms a compound with a molecular mass of 40

• It belongs to group 1 of the periodic table

• It reacts with water