MCQ
Which is incorrect
- ✓$Ni (CO)_4 -$ Tetrahedral, Paramagnetic
- B$[Ni(CN)_4]^{-2} -$ Square planar, diamagnetic
- C$Ni(CO)_4 -$ Tetrahedral, diamagnetic
- D$[NiCl_4]^{-2} -$ Tetrahedral, Paramagnetic
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I.$ In gaseous phase, the vapour pressure of $CH_3COOH$ is less than expected.
$II.$ In benzene, acetic acid dimerises.
$III.\, CH_3OH$ is more viscous than $H_2O.$
$IV.\, CH_3OCH_3$ is non-polar but soluble in water.
Select the correct set of codes using $T$ for true and $F$ for false statements in given sequence.
$(A)$ 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?