Given below are two statements:
Statement (I): The correct sequence of bond lengths in the following species is:
\[
O_2^+<O_2<O_2^-<O_2^{2-}
\]
Statement (II): The correct sequence of number of unpaired electrons in the following species is:
\[
O_2>O_2^+>O_2^->O_2^{2-}
\]
In the light of the above statements, choose the correct answer.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true but Statement II is false
- Statement I is false but Statement II is true
The Correct Option is A
Solution and Explanation
Step 1:Find bond orders} \[ O_2^+ : BO = 2.5 \] \[ O_2 : BO = 2 \] \[ O_2^- : BO = 1.5 \] \[ O_2^{2-} : BO = 1 \] Thus bond length order: \[ O_2^+<O_2<O_2^-<O_2^{2-} \] Hence Statement I is true.
Step 2:Find number of unpaired electrons} \[ O_2 : 2 \text{ unpaired} \] \[ O_2^+ : 1 \text{ unpaired} \] \[ O_2^- : 1 \text{ unpaired} \] \[ O_2^{2-} : 0 \text{ unpaired} \] Thus general decreasing order: \[ O_2>O_2^+>O_2^->O_2^{2-} \] Hence Statement II is also true. \[ \boxed{\text{Both statements are true}} \]
Top JEE Main Chemistry Questions
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)- At equilibrium the concentrations of and in a sealed vessel at . What will be for the reaction
- Find out the major products from the following reactions
Cobalt chloride when dissolved in water forms pink colored complex $X$ which has octahedral geometry. This solution on treating with cone $HCl$ forms deep blue complex, $\underline{Y}$ which has a $\underline{Z}$ geometry $X, Y$ and $Z$, respectively, are
- The correct order of atomic radii is:
Top JEE Main Molecular Stability Questions
- Which one of the carbocations from the following is most stable?
Statement-1: \( \text{ClF}_3 \) has 3 possible structures.
Statement-2: \( \text{III} \) is the most stable structure due to least lone pair-bond pair (lp-bp) repulsion.
Which of the following options is correct?
A molecule with the formula \( AX_4Y \) has all its elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among A, X, and Y. Elements X and Y have first and second highest electronegativity values respectively among all the known elements.
The shape of the molecule is:- \( \text{SF}_4 \) is isostructural with:
Top JEE Main Questions
- In a hydrogen like atom, when an electron jumps from the $M$ - shell to the $L$ - shell, the wavelength of emitted radiation is $\lambda$. If an electron jumps from $N$-shell to the $L$-shell, the wavelength of emitted radiation will be :
- Two masses $m$ and $\frac{m}{2}$ are connected at the two ends of a massless rigid rod of length $l$. The rod is suspended by a thin wire of torsional constant $k$ at the centre of mass of the rod-mass system(see figure). Because of torsional constant $k$, the restoring torque is $\tau =k\theta$ for angular displacement $\theta$. If the rod is rota ted by $\theta_0$ and released, the tension in it when it passes through its mean position will be:
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)- The value of is
- The number of terms of an is even. The sum of the odd terms is and of the even terms is . The last term exceeds the first by . Then the number of terms in the series is ______.