JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
The correct order of electron gain enthalpies of \(Cl\), \(F , Te\) and \(Po\) is .....
- A \(F < Cl < Te < Po\)
- B \(Cl < F < Te < Po\)
- C \(Te < Po < Cl < F\)
- D \(Po < Te < F < Cl\)
Answer & Solution
Correct Answer
(D) \(Po < Te < F < Cl\)
Step-by-step Solution
Detailed explanation
As \(Cl\) has maximum electron affinity among all elements. Element \(\quad \Delta _{ eg } H ( k J / m o l )\) \(F \quad\quad\quad\quad -328\) \(Cl \quad\quad\quad\quad -349\) \(Te \quad\quad\quad\quad -190\) \(Po \quad\quad\quad\quad -174\)
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
- In Carius method of estimation of halogens, \(250 \,mg\) of an organic compound gave \(141 \,mg\) of \(AgBr.\) The percentage of bromine in the compound is : (at. mass \(Ag =108; Br = 80\))JEE Mains 2015 Hard
- With respect to the following reaction, consider the given statements : \([Image]\) \((A)\) \(o-\)Nitroaniline and \(p-\)nitroaniline are the predominant products \((B)\) \(p-\)Nitroaniline and \(m-\)nitroaniline are the predominant products \((C)\) \(HNO _{3}\) acts as an acid \((D)\) \(H _{2} SO _{4}\) acts as an acid
JEE Mains 2022 Medium - The depression in freezing point observed for a formic acid solution of concentration \(0.5\,mL\,L ^{-1}\) is \(0.0405^{\circ}\,C\). Density of formic acid is \(1.05\,g\,mL ^{-1}\). The Van't Hoff factor of the formic acid solution is nearly: (Given for water \(k _{ f }=1.86\,K\,kg\,mol ^{-1}\) )JEE Mains 2022 Medium
- Which one of the following group\(-15\) hydride is the strongest reducing agent?JEE Mains 2021 Medium
- Given below are two statements: Statement \(I : C _{2} H _{5} OH\) and \(AgCN\) both can generate nucleophile. Statement \(II : KCN\) and \(AgCN\) both will generate nitrile nucleophile with all reaction conditions. Choose the most appropriate option :JEE Mains 2021 Medium
- Consider the following sequence for aspartic acid The \(pI\) (isoelectric point) of aspartic acid
JEE Mains 2016 Medium
More PYQs from JEE Mains
- The area of the quadrilateral \(ABCD\) with vertices \(A (2,1,1), B (1,2,5), C (-2,-3,5)\) and \(D (1,-6,-\) 7) is equal toJEE Mains 2023 Hard
- Let \(\mathrm{a}\) and \(\mathrm{b}\) be be two distinct positive real numbers. Let \(11^{\text {th }}\) term of a \(GP\), whose first term is \(a\) and third term is \(b\), is equal to \(p^{\text {th }}\) term of another \(GP\), whose first term is \(a\) and fifth term is \(b\). Then \(\mathrm{p}\) is equal toJEE Mains 2024 Hard
- If \(a, b, c\) are non-zero real numbers and if the system of equations \((a - 1 )x = y + z,\) \((b - 1 )y = z + x ,\) \((c - 1 )z= x + y,\) has a non-trivial solution, then \(ab + bc + ca\) equalsJEE Mains 2014 Hard
- A sample of \(NaClO_3\) is converted by heat to \(NaCl\) with a loss of \(0.16\, g\) of oxygen. The residue is dissolved in water and precipitated as \(AgCl\). The mass of \(AgCl\) (in \(g\)) obtained will be (Given: Molar mass of \(AgCl = 143.5\, g\,mol^{-1}\) )JEE Mains 2018 Hard
- When a ball is dropped into a lake from a height \(4.9 \,m\) above the water level, it hits the water with a velocity \(v\) and then sinks to the bottom with the constant velocity \(v\). It reaches the bottom of the lake \(4.0,s\) after it is dropped. The approximate depth of the lake is ............ \(m\)JEE Mains 2022 Medium
- If the distance of the point \(P(43, \alpha, \beta), \beta<0\), from the line \(\vec{r}=4\hat{i}-\hat{k}+\mu(2\hat{i}+3\hat{k}), \mu\in R\) along a line with direction ratios \(3, -1, 0\) is \(13\sqrt{10}\), then \(\alpha^{2}+\beta^{2}\) is equal to ___ .JEE Mains 2026 Medium