p-Block Elements

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Q1. Which of the following elements is a p-block element? (2021) 2021

Solution:

Aluminium (Al) is in group 13 of the periodic table, which is classified as a p-block element.

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Q2. Which of the following compounds contains a double bond? (2023)

Solution:

Carbon dioxide (CO2) contains double bonds between carbon and oxygen.

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Q3. What is the oxidation state of phosphorus in phosphoric acid (H3PO4)? (2020) 2020

Solution:

In H3PO4, phosphorus has an oxidation state of +5.

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Q4. Which of the following is not a characteristic of p-block elements? (2021)

Solution:

Not all p-block elements are metals; many are nonmetals and metalloids.

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Q5. Which of the following compounds is an example of a p-block element compound? (2020)

Solution:

AlCl3 is a compound formed from a p-block element (Aluminum) and is a classic example of p-block chemistry.

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Q6. Which of the following elements is most likely to form an anion? (2023)

Solution:

Fluorine (F) is highly electronegative and readily forms anions (F-).

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Q7. Which element is known for its ability to form a stable +3 oxidation state? (2022)

Solution:

Aluminium commonly exhibits a stable +3 oxidation state in its compounds.

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Q8. Which of the following elements is most likely to form covalent bonds? (2023)

Solution:

Chlorine (Cl) is a non-metal and tends to form covalent bonds.

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Q9. What is the primary reason for the high electronegativity of halogens? (2020)

Solution:

Halogens have high electronegativity due to their high ionization energy, which allows them to attract electrons effectively.

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Q10. What is the maximum oxidation state of phosphorus in its compounds? (2021)

Solution:

Phosphorus can exhibit a maximum oxidation state of +5 in compounds like PCl5.