MCQ
- A
- B
- C
- D
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Which of the following molecule contains asymmetric carbon atom
Product $(A)$ is
→The correct order of the calculated spin-only magnetic moments of complexs $(A)$ to $(D)$ is
→$(A)$ $\mathrm{Ni}(\mathrm{CO})_{4}$
$(B)$ $\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}$
$(C)$ $\mathrm{Na}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]$
$(D)$ $\mathrm{PdCl}_{2}\left(\mathrm{PPh}_{3}\right)_{2}$
Which one of the following statements is wrong
Product $(B)$ of the above reaction is
→The Gibbs energy for the decomposition of $Al_2O_3$ at $500\,^oC$ is as follows
→$\frac{2}{3}A{l_2}{O_3} \to \frac{4}{3}Al + {O_2},{\Delta _r}G = + 940\,kJ\,mo{l^{ - 1}}$
The potential difference needed for the electrolytic reduction of aluminium oxide ............... $\mathrm{V}$
What is the radius of Bohr’s fifth orbit for $B^{+4}.$ .................. $\mathop {\rm{A}}\limits^{\rm{o}} $
→The standard free energy change $\left(\Delta G ^{\circ}\right)$ for $50 \%$ dissociation of $N _{2} O _{4}$ into $NO _{2}$ at $27^{\circ} C$ and $1\, atm$ pressure is $- x\, J \,mol ^{-1}$. The value of $x$ is $......$ (Nearest Integer)
→[Given $: R =8.31 \,J \,K ^{-1} \,mol ^{-1}, \log 1.33=0.1239$ $\ln 10=2.3]$
Simplified absorption spectra of three complexes $((i),$$( ii)$ and $( iii ))$ of $M ^{ n +}$ ion are provided below; their $\lambda_{\max }$ values are marked as $A, B$ and $C$ respectively. The correct match between the complexes and their $\lambda_{\max }$ values is
→$(i)$ $\left[ M ( NCS )_{6}\right]^{(-6+ n )}$
$(ii)$ $\left[ MF _{6}\right]^{(-6+ n )}$
$(iii)$ $\left[ M \left( NH _{3}\right)_{6}\right]^{ n ^{+}}$