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 is the most acidic among the following oxides? (2019)

Solution:

P2O5 is the most acidic oxide among the given options, as it forms phosphoric acid in water.

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Q3. 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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Q4. Which of the following elements is most likely to form a covalent bond? (2023)

Solution:

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

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Q5. What is the common oxidation state of nitrogen in ammonia (NH3)? (2023) 2023

Solution:

In ammonia (NH3), nitrogen has an oxidation state of -3.

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Q6. Which of the following elements is not a p-block element? (2022)

Solution:

Sodium is an s-block element, while Boron, Carbon, and Nitrogen are p-block elements.

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Q7. What is the primary use of sulfuric acid (H2SO4)? (2022)

Solution:

Sulfuric acid is primarily used as battery acid in lead-acid batteries.

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Q8. What is the primary use of boron in industry? (2019) 2019

Solution:

Boron is primarily used in the production of glass and ceramics.

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Q9. What is the common oxidation state of Group 13 elements? (2021)

Solution:

Group 13 elements commonly exhibit a +3 oxidation state due to the loss of three valence electrons.

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Q10. Which p-block element is essential for the formation of DNA? (2023) 2023

Solution:

Phosphorus is essential for the formation of DNA as it is part of the backbone structure.