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Chemistry

p-Block Elements (Groups 13-14)

A Chemistry chapter of the NEET syllabus, and how to practise it for the computer-based exam.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

p-Block Elements (Groups 13-14) carried 3 questions in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from p-Block Elements (Groups 13-14), with the answer and the working. Try before you peek.

Question 1 · NEET 2026

In potash alum, the ratio of K+\mathrm{K}^{+} and SO42−\mathrm{SO}_{4}^{2-} ions is
  1. A.1 : 2
  2. B.2 : 1
  3. C.2 : 3
  4. D.3 : 2
Answer and explanation

Answer: A

Potash alum is the double salt K2SO4.Al2(SO4)3.24H2O\mathrm{K}_{2}\mathrm{SO}_{4}.\mathrm{Al}_{2}(\mathrm{SO}_{4})_{3}.24\mathrm{H}_{2}\mathrm{O}, most compactly written as KAl(SO4)2.12H2O\mathrm{KAl}(\mathrm{SO}_{4})_{2}.12\mathrm{H}_{2}\mathrm{O}. Each formula unit supplies one K+\mathrm{K}^{+} balanced against two sulphate ions (together with one Al3+\mathrm{Al}^{3+}), so the ratio is 1 : 2. NCERT Class 11, The p-Block Elements (compounds of aluminium).

Question 2 · NEET 2026

Identify the incorrect statement from the following:
  1. A.Carbon has the ability to form pπ\pi-pπ\pi multiple bond with itself.
  2. B.ECl3ECl_3 (E = B and Al) is a monomer when E = B and a dimer when E = Al.
  3. C.The order of catenation property of Group 14 elements is C >> Si > Ge ≈\approx Sn.
  4. D.Oxygen exhibits only -2 oxidation state.
Answer and explanation

Answer: D

Oxygen shows several oxidation states besides -2: it is -1 in peroxides (H2_{2}O2_{2}), -½ in superoxides, and positive (+2, +1) in fluorides such as OF2_{2} and O2_{2}F2_{2}, so statement D is incorrect and is the required answer. The other statements are correct: carbon readily forms pπ\pi-pπ\pi bonds (C=C, C≡C); BCl3_{3} is monomeric (B uses back-bonding) while AlCl3_{3} dimerises to Al2_{2}Cl6_{6}; and catenation decreases down Group 14 as C >> Si > Ge ≈\approx Sn.

How to practise p-Block Elements (Groups 13-14)

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free NEET mini mock with answers.

Nearby Chemistry chapters

Questions

How many questions did p-Block Elements (Groups 13-14) have in NEET 2026?

p-Block Elements (Groups 13-14) carried 3 questions in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise p-Block Elements (Groups 13-14) PYQs for NEET?

Explore available chapter-wise NEET practice in BrainIt, free until the 2027 exam. Review explanations and track chapter accuracy to guide your revision. Sample questions from this chapter are on this page.

Is p-Block Elements (Groups 13-14) important for NEET 2027?

It is part of the Chemistry syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

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