Download App

STD 11 - 4. Chemical bonding and molecular structure — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 4. Chemical bonding and molecular structure4 Marks
MCQ
The bond order in $N_2^ + $ ion is
  • A
    $1$
  • B
    $2$
  • ✓
    $2.5$
  • D
    $3$
✓

Answer

Correct option: C.
$2.5$
(c) ${\rm{B}}{\rm{.O}}{\rm{.}} = \frac{{{\rm{No}}{\rm{. of }}{N_b} - {\rm{No}}{\rm{. of }}{N_a}}}{2}$$ = \frac{5}{2} = 2.5$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

On catalytic reduction $(H_2/Pt)$ how many alkenes will give $2$ -methylbutane ?
→
The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals

$A$. have the same energy

$B$. have the minimum overlap

$C$. have same symmetry about the molecular axis

$D$. have different symmetry about the molecular axis

Choose the most appropriate from the options given below:

→
The screening effect of inner electrons of the nucleus causes
→
In melting lattice, structure of solid
→
For the cell reaction $C{u^{2 + }}_{({C_1}aq)} + Zn(s) \Rightarrow Z{n^{2 + }}_{({C_2}aq)} + Cu(s)$ of an electrochemical cell, the change in free energy at a given temperature is a function of
→
The major product formed in the following reaction is

$\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,C{H_3}} \\ 
  | 
\end{array}} \\ 
  {C{H_3} - C - C{H_3}} \\ 
  | \\ 
  H 
\end{array}{\mkern 1mu} $ $\mathop {\xrightarrow{{C{H_3}OBr}}}\limits_{C{H_3}OH} $

→
Bromine is commercially prepared from sea water by displacement reaction 

$C{l_2} + 2B{r^ - }\left( {aq} \right) \to 2C{l^ - }\left( {aq} \right) + B{r_2}$

$Br_2$ gas thus formed is dissolved into solution of $Na_2CO_3$ and then pure $Br_2$ is obtained by treatment of the solution with

→
$\underset{\begin{smallmatrix} 
 More\,\,reactive \\ 
 (oxidation) 
\end{smallmatrix}}{\mathop{\begin{matrix}
   O  \\
   ||  \\
   H-C-H  \\
\end{matrix}}}\,$$+ CH _{3}- CH $$\xrightarrow{Conc.NaoH}$

Find out the products of reaction

$\begin{array}{*{20}{c}}
  {C{H_3} - CHC{H_2}CHO} \\ 
  {\,|\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {OH\,\,\,\,\,\,} 
\end{array}$

→
How many amperes must be passed through a Down's cell to produce sodium metal at a rate of $30.0\ kg/h$ ? ............. $\mathrm{A}$
→
Consider the isoelectronic species, $Na^+,\,Mg^{2+},\,F^-$ and $O^{2-}$. The correct order of increasing order of their radii is.
→