JEE Mains · Chemistry · STD 12 - p -Block elements - ll
Given two statements below : Statement \(I:\) In \(Cl _{2}\) molecule the covalent radius is double of the atomic radius of chlorine. Statement \(II:\) Radius of anionic species is always greater than their parent atomic radius. Choose the most appropriate answer from options given below :
- A Both Statement \(I\) and Statement \(II\) are correct.
- B Both Statement \(I\) and Statement \(II\) are incorrect.
- C Statement \(I\) is correct but Statement \(II\) is incorrect.
- D Statement \(I\) is incorrect but Statement \(II\) is correct.
Answer & Solution
Correct Answer
(D) Statement \(I\) is incorrect but Statement \(II\) is correct.
Step-by-step Solution
Detailed explanation
In \(Cl _{2}\) molecule, the covalent radius is half of the internuclear distance, so statement \((I)\) is false. For the same element, anion has lower effective nuclear charge than atom \(\Rightarrow\) so anion is larger than atom. \(\Rightarrow\) statement \((II)\) is correct.
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
- Consider the cell \(Pt _{( s )}\left| H _2( g , 1\,atm )\right| H ^{+}( aq , 1 M )|| Fe ^{3+}( aq ), Fe ^{2+}( aq ) \mid Pt ( s )\) When the potential of the cell is \(0.712\,V\) at \(298\,K\), the ratio \(\left[ Fe ^{2+}\right] /\left[ Fe ^{3+}\right]\) is \(.......\)(Nearest integer) Given: \(Fe ^{3+}+ e ^{-}= Fe ^{2+}, E ^{\circ} Fe ^{3+}, Fe ^{2+} \mid Pt =0.771\) \(\frac{2.303 RT }{ F }=0.06\,V\)JEE Mains 2023 Hard
- A solution of copper sulphate \((CuSO_4)\) is electrolysed for \(10\, minutes\) with a current of \(1.5\, amperes\). The mass of copper deposited at the cathode (at . mass of \(Cu = 63\,u\)) is ............ \(\mathrm{g}\)JEE Mains 2013 Hard
- Given below are two statements: Statement \(I:\) \(SO _2\) and \(H _2 O\) both possess V-shaped structure. Statement \(II:\) The bond angle of \(SO _2\) is less than that of \(H _2 O\). In the light of the above statements, choose the most appropriate answer from the options given below:JEE Mains 2023 Medium
- The half-life of \({}^{65}Zn\) is 245 days. After x days, 75% of original activity remained. The value of x in days is _________ . (Nearest integer)
(Given \(: \log 3=0.4771\) and \(\log 2=0.3010\) )JEE Mains 2026 Easy - The addition of \(HI\) in the presence of peroxide catalyst does not follow anti-Markovnikov's rule becauseJEE Mains 2013 Hard
- The increase of pressure on ice \(\rightleftharpoons\) water system at constant temperature will lead toJEE Mains 2015 Medium
More PYQs from JEE Mains
- The area of the region enclosed by the curves \(y=x^2-4 x+4\) and \(y^2=16-8 x\) is :JEE Mains 2025 Medium
- Two p-block elements X and Y form fluroides of the type \(EF _3\). The fluoride compound \(XF _3\) is a Lewis acid and \(YF _3\) is a Lewis base. The hybridization of the central atoms of \(XF _3\) and \(YF _3\) respectively areJEE Mains 2026 Easy
- A ball of mass \(4\, kg\), moving with a velocity of \(10\, ms ^{-1}\), collides with a spring of length \(8\, m\) and force constant \(100\, Nm ^{-1}\). The length of the compressed spring is \(x\, m\). The value of \(x\), to the nearest integer, is ........ .JEE Mains 2021 Medium
- A transition metal \((\mathrm{M})\) among \(\mathrm{Mn}, \mathrm{Cr}, \mathrm{Co}\) and Fe has the highest standard electrode potential \(\left(\mathrm{M}^{3+} / \mathrm{M}^{2+}\right)\). It forms a metal complex of the type \(\left[\mathrm{M}(\mathrm{CN})_6\right]^{4-}\). The number of electrons present in the \(\mathrm{e}_{\mathrm{g}}\) orbital of the complex is _________.JEE Mains 2025 Easy
- An organic compound \([A],\) molecular formula \(C _{10} H _{20} O _{2}\) was hydrolyzed with dilute sulphuric acid to give a carboxylic acid \([ B ]\) and alcohol \([C].\) Oxidation of \([C]\) with CrO \(_{3}- H _{2} SO _{4}\) produced \([B].\) Which of the following structures are not possible for \([ A ] ?\)JEE Mains 2020 Medium
- A uniform disc of radius \(R\) and mass \(M\) is free to oscillate about the axis \(A\) as shown in the figure. For small oscillations the time period is ______.
(\(g\) is acceleration due to gravity)
JEE Mains 2026 Hard