List of practice Questions

Arrange the following set of carbocations in order of decreasing stability. 

Choose the correct answer from the options given below:

Which of the following amino compound(s) CANNOT be prepared by Gabriel phthalimide synthesis? 

(A) n-Butylamine 
(B) Alanine 
(C) Aniline 
(D) t-Butylamine 
Choose the correct answer from the options given below:

The final product (D) in the above sequential reaction is: 

Which of the following is true for the stereochemical relationship of the given structures (A-D)? 

The major product (P) in the following transformation is: 

Above conversion is carried out using: 

The reaction steps shown are: 

The final product (P) is:

Find the ground state term symbol for Pr\(^{3+}\) (Pr = 59).
The biomedical applications of polyphosphazene polymers are: (A) As structural materials for the construction of heart valves and blood vessels.
(B) They are used in drug delivery systems.
(C) Biodegradable support for in vivo bone regeneration.
Match the following organometallic compounds (List-I) with their Characteristics (List-II)\[\begin{array}{|c|c|} \hline \textbf{List-I (Organometallic Compounds)} & \textbf{List-II (Characteristics)} \\ \hline \text{(A) Fe(C$_5$H$_5$)$_2$} & \text{(III) Fluxionality} \\ \hline \text{(B) K$^+$[PtCl$_3$(C$_2$H$_4$)]} & \text{(I) dsp$^2$ hybridization} \\ \hline \text{(C) Mg(CH$_3$)$_2$} & \text{(IV) Polymeric in nature} \\ \hline \text{(D) (CH$_3$)$_2$AlF$_4$} & \text{(II) Tetramer structure} \\ \hline \end{array}\]
The CFSE for the \( d^8 \) octahedral ion is:
The IUPAC name of the coordination compound is: \[ [\text{Rh}(CO)_2I_2]^- \]
Arrange the following ligands in their increasing d-orbital splitting: (A) NH\(_3\)
(B) C\(_2\)O\(_4^{2-}\)
(C) OH\(^-\)
(D) CN\(^-\)
For the second and third row of transition elements, which statement is not true?
Match the xenon compounds (List-I) with structures (List-II)\[\begin{array}{|c|c|} \hline \textbf{List-I (Xenon compounds)} & \textbf{List-II (Structures)} \\ \hline \text{(A) XeF$_4$} & \text{(IV) Square planar} \\ \hline \text{(B) XeO$_3$} & \text{(III) Pyramidal} \\ \hline \text{(C) XeO$_2$F$_2$} & \text{(I) Trigonal bipyramidal} \\ \hline \text{(D) XeO$_4$} & \text{(II) Tetrahedral} \\ \hline \end{array}\]
The magnitude of CFSE depends on: (A) The nature of the ligand
(B) The charge on the metal ion
(C) Position of the metal ion in transition series
(D) Geometry of the complex
Match the metals (List-I) with their ores (List-II)\[\begin{array}{|c|c|} \hline \textbf{List-I (Metals)} & \textbf{List-II (Ores)} \\ \hline \text{(A) Mercury (Hg)} & \text{(III) Cinnabar} \\ \hline \text{(B) Lead (Pb)} & \text{(IV) Galena} \\ \hline \text{(C) Manganese (Mn)} & \text{(I) Pyrolusite} \\ \hline \text{(D) Zinc (Zn)} & \text{(II) Calamine} \\ \hline \end{array}\]
On descending the alkali metal group, the lattice enthalpies of both the oxide and peroxide (or superoxide) decreased, because:
Which of the following is used in vehicles for the inflation of airbags?
Superconductors are a special class of materials that have zero ...................... below a critical temperature.
An alloy of Cu and Au will show complete miscibility as per Hume-Rothery if: (A) The metallic radii of the Cu and Au differs only by 12.5%.
(B) Cu and Au have the same crystal structure.
(C) The chemical properties of both the metals are similar.
(D) The number of valence electrons is different in both.
In an Ellingham-diagram, if the C/C\(_2\)O line lies below the metal oxide line, then the carbon is used to reduce the metal oxide and itself is oxidized to:
From the following atoms, which will show the lowest first ionization energy (\( \text{IE}_1 \))?
The electronegativity of the Silicon (Si) atom using Allred-Rochow scale of electronegativity is. Given: The covalent radius for Si atom = 1.175 Angstrom.
Using the VSEPR model, the shape of \( \text{PCl}_4^+ \) ion is: