JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
The number of lone pairs of electrons on the central \(I\) atom in \(I_{3}^{-}\) is \(.......\)

- A \(3\)
- B \(0\)
- C \(1\)
- D \(2\)
Answer & Solution
Correct Answer
(A) \(3\)
Step-by-step Solution
Detailed explanation
\(\mathrm{I}_{3}^{-}:\) The number of lone pairs of electron on the central atom is \(3 .\)
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
- What weight of glucose must be dissolved in \(100 g\) of water to lower the vapour pressure by \(0.20\, mm\) \(Hg\) ? (Assume dilute solution is being formed) Given: Vapour pressure of pure water is \(54.2\,mm\) \(Hg\) at room temperature. Molar mass of glucose is \(180\,g\,mol ^{-1}\)JEE Mains 2023 Medium
- An element ' \(E^{\prime}\) has the ionisation enthalpy value of \(374 \mathrm{~kJ} \mathrm{~mol}^{-1}\). ' \(E\) ' reacts with elements \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and D with electron gain enthalpy values of \(-328,-349,-325\) and \(-295 \mathrm{~kJ} \mathrm{~mol}^{-1}\), respectively. The correct order of the products EA, EB, EC and ED in terms of ionic character is :JEE Mains 2025 Medium
- The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is _______.JEE Mains 2024 Hard
- The complex cation which has two isomers is:JEE Mains 2023 Medium
- The amphoteric oxide among \(\mathrm{V}_2 \mathrm{O}_3, \mathrm{~V}_2 \mathrm{O}_4\) and \(\mathrm{V}_2 \mathrm{O}_5\), upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion is _______.JEE Mains 2025 Medium
- Molar mass of the hydrocarbon \((X)\) which on ozonolysis consumes one mole of \(O _3\) per mole of \(( X )\) and gives one mole each of ethanal and propanone is \(......g\,mol ^{-1}\) (Molar mass of \(C : 12\,g\,mol ^{-1}, H : 1\,g\,mol ^{-1}\) )JEE Mains 2023 Medium
More PYQs from JEE Mains
- The crystal Field stabilization Energy \((CFSE)\) of \(\left[ CoF _{3}\left( H _{2} O \right)_{3}\right]\left(\Delta_{0}< P \right)\) is \(:-\)JEE Mains 2020 Hard
- When a part of a straight capillary tube is placed vertically in a liquid, the liquid raises upto certain height h. If the inner radius of the capillary tube, density of the liquid and surface tension of the liquid decrease by 1% each, then the height of the liquid in the tube will change by __________ %.JEE Mains 2026 Easy
- The sum, of the squares of all the roots of the equation \(x^2+|2 x-3|-4=0\), isJEE Mains 2025 Medium
- When \(0.25\) moles of a non-volatile, non-ionizable solute was dissolved in \(1\) mole of a solvent the vapor pressure of solution was \(x\%\) of vapor pressure of pure solvent. What is \(x\%\)?JEE Mains 2026 Easy
- If the system of equations \(\mathrm{x}+4 \mathrm{y}-\mathrm{z}=\lambda\), \(7 x+9 y+\mu z=-3,5 x+y+2 z=-1\) has infinitely many solutions, then \((2 \mu .+3 \lambda)\) is equal to :JEE Mains 2024 Medium
- The synonym for water gas when used in the production of methanol isJEE Mains 2019 Hard