NEET Chemistry Questions: P - Block Elements

Pratcice NEET questions from all chapters from huge question bank for free. All MCQs are based on NCERT syllabus. To practice from a specific subject and chapter, select a subject below. Login to practice in a structured way with explanations, bookmarks, lists, notes etc. Click here to Login or Sign up for free.

Physics Chemistry Botany Zoology

Please Login or Sign up to use advanced filters.

Question bank:

Which metal burn in air at high temperature with the evolution of much heat.




No explanation available.
Aluminium hydroxide is soluble in excess of sodium hydroxide forming the ion




When aluminium hydroxide, $ ext{Al(OH)}_3$, is dissolved in excess sodium hydroxide, it forms a soluble complex ion known as sodium aluminate, $ ext{Na[Al(OH)}_4 ext{]}$. This complex can be represented by the ion $ ext{AlO}_2^-$. Therefore, the correct answer is $ ext{AlO}_2^-$. This ion formation can be remembered as a result of the amphoteric nature of aluminium hydroxide, which allows it to react with both acids and bases.
Moissan boron is




No explanation available.
Hydrogen gas will not produce




No explanation available.
$ Conc.HNO_3$ _________




Aluminium reacts with concentrated nitric acid ($Conc.HNO_3$) to form a passive oxide layer on its surface, which prevents further reaction. Therefore, aluminium does not react with concentrated nitric acid.
  • 🎉 Independence Day Offer: Get 25% off with code FREEDOM25! 🎉
  • 📘 Chapter progress tracker with auto color coding
  • 🔍 Weak‑area identification & detailed analytics
  • ✏️ Daily DPPs, mini & custom tests
  • ✨ Offline progress recorder & many more
$ Anhydrous AlCl_3 $ is obtained from




$ 2Al + 6HCl \rightarrow 2AlCl_3 + 3H_2 $
Which is true for an element & present in III group of the periodic table




$ Al \rightarrow III group \rightarrow form Al_2O_3 $
Crystalline metal can be transformed into metallic glass by




Crystalline metal can be transformed into metallic glass by very rapid cooling of the molten metal. This process, known as quenching, prevents the formation of a crystalline structure, resulting in an amorphous or glassy state.
Which metal is protected by a layer of it own oxide




Aluminium (Al) is protected by a layer of its own oxide. When exposed to air, aluminium forms a thin layer of aluminium oxide ($Al_2O_3$) on its surface, which acts as a protective barrier against further oxidation and corrosion.
$ B(OH)_3 + NaOH \Rightarrow NaBO_2+Na[B(OH)_4] +H_2O.$ How can this reaction is made to proceed in forward direction.




Due to formation of chelated complex, the reaction moves in forword direction.
An element A dissolves both in acid and alkali. It is an example of




An element that dissolves both in acid and alkali is termed as amphoteric. Amphoteric substances can react with both acids and bases to form water and salts. This property is typically exhibited by elements like aluminum and zinc.
Which among the following is not a borane.




Boranes are compounds of boron and hydrogen. Common boranes include $B_2H_6$ (diborane) and $B_4H_{10}$ (tetraborane). However, $B_3H_6$ is not a known borane compound.
In Goldschmidt aluminothermic process, thermite contains




In aluminothermic process, Thermite contains 3 parts of $ Fe_2O_3$ and one part of Al.
Aluminium oxide is not reduced by chemical reactions since




Aluminium oxide is highly stable therefore it is not reduced by chemical reactions
Aluminium is not used




$ B_2H_6 $ has two types of B - H bonds.