MCQ
Azeotropic mixture are
- ✓
- B
- CMixture of two solids
- DNone of the above
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$(A)$ $Rb$ and $Cs$
$(B)$ $Na$ and $K$
$(C)$ $Ar$ and $Kr$
$(D)$ $I$ and $At$
Choose the correct answer from the options given below.
$(A)$ The principal quantum number $'n'$ is a positive integer with values of $'n'=1,2,3, \ldots$.
$(B)$ The azimuthal quantum number $'l'$ for a given $'n'$ (principal quantum number) can have values as $'l'=0,1,2, \ldots n$
$(C)$ Magnetic orbital quantum number $'m _{l}'$ for a particular $'l'$ (azimuthal quantum number) has $(2 l$ + 1) values.
$(D)$ $\pm 1 / 2$ are the two possible orientations of electron spin.
$(E)$ For $l=5$, there will be a total of $9$ orbital.
Which of the above statements are correct?