Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

JEE Main 202310 AprilMorning Shift

Exam: JEE Main
Year: 2023
Date: 10 April
Shift: Morning Shift
Subject: Chemistry
Chapter: Chemical Bonding and Molecular Structure

JEE Main 2023 · 10 April · Morning Shift · Chemistry · Chemical Bonding and Molecular Structure

The compound which does not exist is

The compound which does not exist is

Options

A ${NaO}_{2}$
B ${BeH}_{2}$
C ${PbEt}_{4}$
D{ $\left({NH}_{4}\right)}_{2}{BeF}_{4}$

Correct answer

A. ${NaO}_{2}$

Step-by-step solution

Oxide and peroxides of sodium are stable ( ${Na}_{2}O$ and ${Na}_{2}{O}_{2}$ ) $K, Rb, Cs$ form superoxides. Beryllium forms a hydride with molecular formula ${BeH}_{2}$ Organic lead (tetraethyl lead; TEL) is used as an antiknock agent in gasoline and jet fuels. The compound ${\left({\text{ NH }}_{4}\right)}$ _{2}{BeF}_{4} $on thermal decomposition produces$ {BeF}_{2} $and$ {NH}_{4}F.

Practice Chemical Bonding and Molecular Structure on Quantrex Academy →

More from Chemical Bonding and Molecular Structure

The correct order of dipole moments for the given species is JEE Advanced 2026 Consider the following species: SOCl_2 , XeOF_4 , ClF_3 , ClF_5 , XeF_5^+ , SO_3^ 2… JEE Advanced 2026 The correct order of ONO bond angle in the given species is JEE Advanced 2026 Bromine trifluoride autoionizes to form BrF_2^ and BrF_4^ . The shapes of the cation and… JEE Main 2026 Given below are two statements : Statement I : The number of compounds among SO _2 , SO… JEE Main 2026 Given below are two statements : Statement I : F _2 O Statement II : SiF _4 , SnF _4 and… JEE Main 2026 The pairs among A = [SO_3^ 2- , CO_3^ 2- ] , B = [O_2^ 2- , F_2] , C = [CN^-, CO] , D =… JEE Main 2026 The covalent radii of atoms A and B are r_A and r_B , respectively. The covalent bond… JEE Main 2026 Full Chemical Bonding and Molecular Structure list All JEE Main PYQs