p-Block Elements Practice Questions
NEET · Chemistry · 1659 free MCQs with instant results and detailed explanations.
1659
Total
346
Easy
771
Medium
542
Hard
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Topics in p-Block Elements
Group 13 to 18
229
Boron Family
260
Carbon Family
239
Nitrogen Family
201
Oxygen Family
251
Halogens
227
Noble Gases
252
Sample Questions from p-Block Elements
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
Which element in Group 13 is commonly used in the production of lightweight alloys for aircraft?
A.
Aluminum
B.
Gallium
C.
Indium
D.
Thallium
Show Answer & Explanation
Correct Answer: A
Aluminum is widely used in lightweight alloys because of its low density and high strength-to-weight ratio, making it ideal for aircraft manufacturing.
Q2
Easy
Which of the following is the correct oxidation state of Boron in Boron trifluoride (BF3)?
A.
0
B.
+3
C.
-3
D.
+1
Show Answer & Explanation
Correct Answer: B
In BF3, Boron exhibits an oxidation state of +3, as it forms three bonds with Fluorine, which is more electronegative.
Q3
Easy
Which property is commonly associated with the elements of Group 14 in the p-block?
A.
Non-metallic character increases down the group
B.
Tendency to form covalent bonds
C.
High thermal conductivity
D.
All elements are gases
Show Answer & Explanation
Correct Answer: B
Group 14 elements typically show a strong tendency to form covalent bonds due to their four valence electrons, allowing them to share electrons easily.
Q4
Medium
Which of the following elements is primarily known for its ability to form stable covalent compounds in Group 14?
A.
Silicon
B.
Lead
C.
Tin
D.
Carbon
Show Answer & Explanation
Correct Answer: D
Carbon is the most well-known element in Group 14 for forming stable covalent compounds due to its ability to form four covalent bonds. Its small size and high electronegativity facilitate strong covalent bonding, making carbon the backbone of organic chemistry.
Q5
Medium
Which element in Group 13 has the highest electronegativity?
A.
Boron
B.
Aluminium
C.
Gallium
D.
Indium
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Correct Answer: A
Boron has the highest electronegativity in Group 13 due to its small atomic size and high effective nuclear charge, making it highly electronegative compared to other elements in the group.
Q6
Medium
Which of the following oxides of nitrogen is the most acidic?
A.
N2O
B.
NO
C.
N2O5
D.
NO2
Show Answer & Explanation
Correct Answer: C
N2O5 is the most acidic oxide among the given options because it forms strong acids (nitric acid) upon reaction with water, reflecting its acidic nature.
Q7
Medium
Which of the following is a characteristic property of the p-block elements?
A.
Good conductors of heat
B.
Form covalent bonds
C.
High melting points
D.
Exist only as gases
Show Answer & Explanation
Correct Answer: B
P-block elements predominantly form covalent bonds due to their varied electronegativities and the presence of p orbitals, which facilitate sharing of electrons.
Q8
Hard
Which of the following oxides of Group 13 elements is amphoteric in nature?
A.
Al2O3
B.
Ga2O3
C.
In2O3
D.
Tl2O3
Show Answer & Explanation
Correct Answer: A
Al2O3 is amphoteric as it can react with both acids and bases, unlike the other oxides listed which primarily exhibit acidic or basic properties.
Q9
Hard
What is the primary oxidation state of phosphorus in phosphoric acid (H3PO4)?
A.
+3
B.
+5
C.
-3
D.
0
Show Answer & Explanation
Correct Answer: B
In phosphoric acid, phosphorus exhibits an oxidation state of +5, as confirmed by the electron counting of the compound's structure.
Q10
Hard
Which of the following elements' allotropes exhibit metallic bonding properties?
A.
Carbon
B.
Silicon
C.
Phosphorus
D.
Boron
Show Answer & Explanation
Correct Answer: D
Boron exhibits metallic bonding in its allotrope, especially in the form of boron nitride when treated under high-pressure conditions.
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p-Block Elements — NEET Chemistry Practice Questions Online
This page contains 1659 practice MCQs for the chapter p-Block Elements in NEET Chemistry. The questions are organized by difficulty — 346 easy, 771 medium, 542 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 7 topics, giving you comprehensive coverage of the entire chapter.