JEE Mains · Chemistry · STD 12 - p -Block elements - ll
Identify the incorrect statements about group \(15\) elements : \((A)\) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature. \((B)\) The common oxidation states of these elements are \(-3,+3\) and +5 . \((C)\) Nitrogen has unique ability to form \(\mathrm{p} \pi-\mathrm{p} \pi\) multiple bonds. \((D)\) The stability of +\(5\) oxidation states increases down the group. \((E)\) Nitrogen shows a maximum covalency of \(6\). Choose the correct answer from the options given below.
- A \((A)\), \((B)\), \((D)\) only
- B \((A)\), \((C)\), \((E)\) only
- C \((B)\), \((D)\), \((E)\) only
- D \((D)\) and \((E)\) only
Answer & Solution
Correct Answer
(D) \((D)\) and \((E)\) only
Step-by-step Solution
Detailed explanation
\((D)\) Due to inert pair effect lower oxidation state is more stable. \((E)\) Nitrogen belongs to \(2^{\text {nd }}\) period and cannot expand its octet.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Given below are two statements :- Statement \(I:\)- In redox titration, the indicators used are sensitive to change in \(pH\) of the solution. Statement \(II:\)- In acid-base titration, the indicators used are sensitive to change in oxidation potential. In the light of the above statements, choose the most appropriate answer from the options given belowJEE Mains 2023 Medium
- Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence ofJEE Mains 2026 Easy
- The strongest conjugate acid will result from:JEE Mains 2026 Medium
- For the thermal decomposition of \(\mathrm{N}_2 \mathrm{O}_5(\mathrm{~g})\) at constant volume, the following table can be formed, for the reaction mentioned below.
\(2 \mathrm{~N}_2 \mathrm{O}_5(\mathrm{~g}) \rightarrow 2 \mathrm{~N}_2 \mathrm{O}_4(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g})\)
\(\mathrm{x}=\ldots \times 10^{-3} \mathrm{~atm} \text { [nearest integer] }\)
Given : Rate constant for the reaction is \(4.606 \times 10^{-2} \mathrm{~s}^{-1}\).JEE Mains 2025 Easy - In some solutions, the concentration of \(H_3O^+\) remains constant even when small amounts of strong acid or strong base are added to them. These solutions are known asJEE Mains 2014 Medium
- Given below are two statements: One is labelled as Assertion \(A\) and the other is labelled as Reason \(R\): Assertion \(A\): Alcohols react both as nucleophiles and electrophiles. Reason \(R\): Alcohols react with active metals such as sodium, potassium and aluminum to yield corresponding alkoxides and liberate hydrogen. In the light of the above statements, choose the correct answer from the options given below:JEE Mains 2024 Hard
More PYQs from JEE Mains
- In an experiment, a small steel ball falls through a Iiquid at a constant speed of \(10\, cm/s\). If the steel ball is pulled upward with a force equal to twice its effective weight, how fast will it move upward ? ......... \(cm/s\)JEE Mains 2013 Hard
- The distance of the point \(P (4,6,-2)\) from the line passing through the point \((-3,2,3)\) and parallel to a line with direction ratios \(3,3,-1\) is equal to :JEE Mains 2023 Medium
- As shown in the figure a block of mass \(10\,kg\) lying on a horizontal surface is pulled by a force \(F\) acting at an angle \(30^{\circ}\), with horizontal. For \(\mu_{ s }=0.25\), the block will just start to move for the value of \(F..........\,N\) : \(\left[\right.\) Given \(\left.g =10\,ms ^{-2}\right]\)
JEE Mains 2023 Medium - Electron gain enthalpy with negative sign of fluorine is less than that of chlorine due toJEE Mains 2013 Medium
- The area enclosed between the curves \(y=x|x|\) and \(\mathrm{y}=\mathrm{x}-|\mathrm{x}|\) is :JEE Mains 2024 Medium
- In the given figure, the charge stored in \(6 \ \mu \mathrm{F}\) capacitor, when points \(A\) and \(B\) are joined by a connecting wire is _______ \(\mu \mathrm{C}\).
JEE Mains 2024 Hard