JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
The increasing order of the atomic radii of the following elements is \((a)\; C \;\;(b)\; O \;\;(c)\; F\;\; (d) \;Cl\;\; (e)\; Br\)
- A \((b) < (c) < (d) < (a) < (e)\)
- B \((a) < (b) < (c) < (d) < (e)\)
- C \((d) < (c) < (b) < (a) < (e)\)
- D \((c) < (b) < (a) < (d) < (e)\)
Answer & Solution
Correct Answer
(D) \((c) < (b) < (a) < (d) < (e)\)
Step-by-step Solution
Detailed explanation
If the given elements are arranged according to their position in periodic table Atomic radius \(C > O > F < Cl < Br\) \(Br > Cl > C > O > F\)
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
- At \(30^{\circ}\,C\), the half life for the decomposition of \(AB _{2}\) is \(200\,s\) and is independent of the initial concentration of \(AB _{2}\). The time required for \(80 \%\) of the \(AB _{2}\) to decompose is \(....s\) (Given: \(\log 2=0.30;\log 3=0.48)\)JEE Mains 2022 Medium
- The density of \(\mathrm{NaOH}\) solution is \(1.2 \mathrm{gcm}^{-3} .\) The molality of this solution is \(....\,m\) (Round off to the NearestInteger) [Use:Atomicmasses:\(Na:23.0\,u \mathrm{O}: 16.0 \,\mathrm{u} \quad \mathrm{H}: 1.0 \,\mathrm{u}\), Density of \(\mathrm{H}_{2} \mathrm{O}: 1.0 \,\mathrm{~g} \,\mathrm{~cm}^{-3}\) ]JEE Mains 2021 Medium
- Given below are two statements: One is labelled as Assertion \(A\) and the other is labelled as Reason \(R\). Assertion \(A:\) Butan\(-1-\)ol has higher boiling point than ethoxyethane. Reason \(R:\) Extensive hydrogen bonding leads to stronger association of molecules. In the light of the above statements, choose the correct answer from the options given below:JEE Mains 2023 Medium
- For the following reaction at \(50°\)C and at \(2\) atm pressure,
\(2N_2O_5(g) \rightleftharpoons 2N_2O_4(g)+O_2(g)\)
\(N_2O_5\) is \(50\%\) dissociated.
The magnitude of standard free energy change at this temperature is \(x\).
\(x=\) ______ J mol\(^{-1}\) [Nearest integer].
Given: \(R=8.314\) J mol\(^{-1}\) K\(^{-1}\), \(\log 2=0.30\), \(\log 3=0.48\), \(\ln 10=2.303\), \(°C+273=K\)JEE Mains 2026 Hard - X g of nitrobenzene on nitration gave 4.2 g of m-dinitrobenzene. \(\mathrm{X}=\)______ g. (nearest integer)
[Given : molar mass (in \(\mathrm{g} \mathrm{mol}^{-1}\)) \(\mathrm{C}: 12, \mathrm{H}: 1\), \(\mathrm{O}: 16, \mathrm{~N}: 14]\)JEE Mains 2025 Medium - The molecular formula of second homologue in the homologous series of mono carboxylic acids is___________.JEE Mains 2024 Hard
More PYQs from JEE Mains
-
Choose the correct answer from the options given below :JEE Mains 2025 Medium - Let \(\vec{a}=6 \hat{i}+\hat{j}-\hat{k}\) and \(\vec{b}=\hat{i}+\hat{j}\). If \(\vec{c}\) is a is vector such that \(|\vec{c}| \geq 6, \vec{a} \cdot \vec{c}=6|\vec{c}|,|\vec{c}-\vec{a}|=2 \sqrt{2}\) and the angle between \(\vec{a} \times \vec{b}\) and \(\vec{c}\) is \(60^{\circ}\), then \(|(\vec{a} \times \vec{b}) \times \vec{c}|\) is equal to :JEE Mains 2024 Hard
- One main scale division of a vernier callipers is \(a\) \(cm\) and \(n ^{\text {th }}\) division of the vernier scale coincide with \(( n -1)^{\text {th }}\) division of the main scale. The least count of the callipers in \(mm\) isJEE Mains 2021 Medium
- The minimum value of \(f ( x )= a ^{ a ^{ x }}+ a ^{1- a ^{ x }},\) where \(a, x \in R\) and \(a > 0\), is equal to ..... .JEE Mains 2021 Medium
- The integral \(\int {\frac{{xdx}}{{2 - {x^2} + \sqrt {2 - {x^2}} }}} \) equalsJEE Mains 2013 Hard
- The isoelectronic set of ions isJEE Mains 2019 Hard