The hydride ions ( H^ - ) are isoelectronic with - Vidyadip

MCQ

The hydride ions $({H^ - })$ are isoelectronic with

A
$Li$
B
$H{e^ + }$
✓
$He$
D
$Be$

✓

Answer

Correct option: C.

$He$

c
(c) ${H^ - } = 1{s^2}$ and $H{e^ + } = 1{s^2}.$

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

More "M.C.Q (1 Marks)" from 2. structure of atom→2. structure of atom — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of the following would not rearrange to a more stable form ?

The $IUPAC$ name of $\begin{matrix}
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}}\, \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,| \\
C{{H}_{3}}-C{{H}_{2}}-CH-CH-C-C{{H}_{3}} \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,|\, \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl\,\,\,\,\,\,\,\,C{{H}_{3}}\,\,\,OH \\
\end{matrix}$ is

What is the molar solubility of $Al(OH)_3$ in $0.2\, M\, NaOH$ solution? Given that, solubility product of $Al(OH)_3 = 2.4 \times 10^{-24}$

Which of the following figures does not represent $1\, mole$ of $O_2$ gas at $NTP$ ?

Which statement is false for the balanced equation given below

$CS_2 + 3O_2 \to 2SO_2 + CO_2$

The reaction quotient $(Q)$ for the reaction ${N_{2(g)}} + $$3{H_{2(g)}}$$\rightleftharpoons$$2N{H_{3(g)}}$ is given by $Q = \frac{{{{[N{H_3}]}^2}}}{{[{N_2}]{{[H{}_2]}^3}}}$. The reaction will proceed from right to left is

where $K_c$ is the equilibrium constant

The bond order in ${N_2}$ molecule is

The wavelength of $H_{\alpha }$ line of Balmer series is $X\,\mathop A\limits^o $ . What is the wavelength of $H_{\beta }$ line of Balmer series ?

The electrophile, $E^+$ attacks the benzene ring to generate the intermediate $\sigma -$ complex. Which $\sigma -$ complex is of lowest energy ?

$25\, g$ of a solute of molar mass $250\, g\, mol^{-1}$ is dissolved in $100\, ml$ of water to obtain a solution whose density is $1.25\, g\, ml^{-1}$. The molarity and molality of the solution are respectively