Properties and Bonding of HBr

The video explores whether hydrobromic acid (HBr) is ionic or covalent, concluding it is polar covalent. It explains that HBr consists of hydrogen and bromine, both non-metals, making it covalent. The difference in electronegativity between hydrogen (2.1) and bromine (2.8) is 0.7, indicating a polar covalent bond. Although HBr dissociates into ions in water, it remains classified as polar covalent due to its non-metal composition.

What type of bond is present in HBr?

• Non-polar covalent

• Metallic

• Ionic

• Polar covalent

Why is HBr considered a covalent compound?

• It conducts electricity in solid form

• It has a high melting point

• It contains two non-metals

• It contains a metal and a non-metal

What is the significance of the periodic table in determining the nature of HBr?

• It shows the atomic mass of elements

• It helps identify metals and non-metals

• It lists the boiling points of elements

• It provides information on element colors

Which of the following is true about HBr when considering its components?

• It is made of a metal and a non-metal

• It is made of two metals

• It is made of two non-metals

• It is made of a metal and a metalloid

What is the electronegativity difference between hydrogen and bromine?

• 0.5

• 1.0

• 0.7

• 1.5

What is the role of electronegativity in determining bond type?

• It determines the atomic number

• It affects the melting point

• It influences the sharing of electrons

• It determines the color of the compound

What does a difference in electronegativity of 0.7 indicate about the bond in HBr?

• The bond is ionic

• The bond is non-polar covalent

• The bond is polar covalent

• The bond is metallic

How are electrons shared in a polar covalent bond like in HBr?

• Equally between atoms

• Not shared at all

• More towards the less electronegative atom

• More towards the more electronegative atom

What happens to HBr when it is dissolved in water?

• It forms a precipitate

• It dissociates into ions

• It remains as a molecule

• It forms a gas

Which of the following best describes HBr in terms of its acid strength?

• Weak acid

• Neutral

• Strong acid

• Weak base