Class 12 Chemistry MCQ – p-Block Elements

This set of Class 12 Chemistry Chapter 7 Multiple Choice Questions & Answers (MCQs) focuses on “p-Block Elements”. These MCQs are created based on the latest CBSE syllabus and the NCERT curriculum, offering valuable assistance for exam preparation.

1. Which of the following represents the general electronic configuration of an element belonging to the p-block of the periodic table?
a) (n-2)f⁰(n-1)d⁰ns² np^{0 -6}
b) (n-2)f⁰(n-1)d^{1 – 10} ns² np^{1- 6}
c) (n-2)f⁰(n-1)d⁰ ns²np^1-6
d) (n-2)f^{1- 14}(n-1)d^{1- 10}ns²np^{1- 6}
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2. What happens to the size of atoms of elements of p-block as we move from left to right in the same period?
a) Size increases
b) Size decreases
c) Size does not change
d) Size increases then decreases
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3. What is the maximum covalency of the nitrogen atom?
a) One
b) Two
c) Three
d) Four
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4. Why does nitrogen show poor tendency towards catenation?
a) N atom can form multiple pπ – pπ bonds
b) Octet of N₂ is complete unlike carbon
c) The N ≡ N is unreactive at room temperature
d) The N – N single bond is weaker and unstable
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5. What is the primary product of Haber-Bosch process?
a) Ammonia
b) Nitric acid
c) Nitrous acid
d) Pyridine
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6. Which gas is released when copper chips are subjected to concentrated nitric acid?
a) Nitrogen (I) oxide
b) Nitrogen (II) oxide
c) Nitrogen (III) oxide
d) Nitrogen (IV) oxide
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7. What shape is the HNO₃ molecule in its gaseous state?
a) Bent
b) Linear
c) Planar
d) See Saw
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8. Which of the following ions is the brown ring test useful for determining?
a) NO₂^–
b) NO₂⁺
c) NO₂
d) NO₃^–
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9. What catalyst is used for oxidation of ammonia to produce nitric acid?
a) Palladium hydride
b) Sodium amalgam
c) Platinum-Rhodium gauze
d) Vanadium (V) oxide
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10. What is the oxidation state of nitrogen in di-nitrogen trioxide?
a) +1
b) +2
c) +3
d) +4
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More MCQs on Class 12 Chemistry Chapter 7:

• Chapter 7 – p-Block Elements MCQ – Dinitrogen
• Chapter 7 – p-Block Elements MCQ – Ammonia
• Chapter 7 – p-Block Elements MCQ – Oxides of Nitrogen
• Chapter 7 – p-Block Elements MCQ – Nitric Acid
• Chapter 7 – p-Block Elements MCQ – Phosphorus Allotropic Forms
• Chapter 7 – p-Block Elements MCQ – Phosphine
• Chapter 7 – p-Block Elements MCQ – Phosphorus Halides
• Chapter 7 – p-Block Elements MCQ – Oxoacids of Phosphorus
• Chapter 7 – p-Block Elements MCQ – Group 16 Elements
• Chapter 7 – p-Block Elements MCQ – Dioxygen
• Chapter 7 – p-Block Elements MCQ – Simple Oxides
• Chapter 7 – p-Block Elements MCQ – Ozone
• Chapter 7 – p-Block Elements MCQ – Sulphur Allotropic Forms
• Chapter 7 – p-Block Elements MCQ – Sulphur Dioxide
• Chapter 7 – p-Block Elements MCQ – Oxoacids of Sulphur
• Chapter 7 – p-Block Elements MCQ – Sulphuric Acid
• Chapter 7 – p-Block Elements MCQ – Group 17 Elements
• Chapter 7 – p-Block Elements MCQ – Chlorine
• Chapter 7 – p-Block Elements MCQ – Hydrogen Chloride
• Chapter 7 – p-Block Elements MCQ – Oxoacids of Halogens
• Chapter 7 – p-Block Elements MCQ – Interhalogen Compounds
• Chapter 7 – p-Block Elements MCQ – Group 18 Elements

To practice all chapters and topics of class 12 Chemistry, here is complete set of 1000+ Multiple Choice Questions and Answers.