Download App

2. structure of atom — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
The energy is lowest for the orbital :
  • ✓
    $4s$
  • B
    $4p$
  • C
    $3d$
  • D
    $4f$
✓

Answer

Correct option: A.
$4s$
a

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

The approximate $pH$ of a solution formed by mixing equal volumes of solution of $0.1\,M$ sodium propanoate and $0.1\,M$ propanoic acid (if the dissociation constant of propanoic acid is $1.3\times10^{-5}$) will be
→
Assertion : Absolute values of internal energy of substances cannot be determined.
Reason : It is impossible to determine exact values of constituent energies of the substances.
→
Homolytic fission of the following alkanes forms free radicals

$CH_3 - CH_3, CH_3 - CH_2 $$- CH_3, (CH_3)_2CH - CH_3,$

$ CH_3 - CH_2 - CH(CH_3)_2.$

Increasing order of stability of the radicals is

→
The number of electrons in $2.1\,$ gram-ion of $Cl^-$ is
→
The electronic configuration of an atom $A$ is $1{s^2},$ $2{s^2}{p^6},$ $3{s^2}{p^6}{d^{10}},\,4{s^2}{p^3}$. The chemistry of $A$ is therefore likely to be similar to that of
→
The correct set of oxidation number of $N$ in $NH_4NO_2$ is
→
Increasing order of electron affinity is
→
$IUPAC$ name of ${(C{H_3})_2}\,CH - CHO$ is:
→
A buffer solution can be prepared from a mixture of
→
The newmann projection formula of most stable conformation of $3-$ hydroxypropanal is gauche. It is stable due to
→