List of top Chemistry Questions

Which of the following has the maximum size?
Find the dimensions of \( \frac{B}{\mu_0} \)
For \([ \text{NiCl}_4 ]^{2-}\), what is the charge on the metal and shape of the complex respectively?
Compare boiling point of given solutions:
(i) \( 10^{-4} \) NaCl
(ii) \( 10^{-3} \) NaCl
(iii) \( 10^{-2} \) NaCl
(iv) \( 10^{-4} \) urea
Which of the following is the correct order of acidic strength for the following compounds: HNO\(_3\), HClO\(_4\), and HClO\(_3\)?
What is the hybridization of the central atom in the molecule \( \text{SO}_3 \)?
In an oxidation-reduction reaction, what happens to the oxidation state of the central atom in \( \text{MnO}_4^- \) when it is reduced to \( \text{Mn}^{2+} \)?
In the reaction \( 2\text{H}_2\text{O}_2 \rightarrow 2\text{H}_2\text{O} + \text{O}_2 \), what is the role of potassium iodide (KI) in this reaction?
What is the shape of the \( \text{ClO}_2^- \) ion according to VSEPR theory?
Why is the ability of oxygen greater than fluorine to stabilise higher oxidation states of transition metals?
How do you prepare potassium manganate from pyrolusite ore?
Out of KMnO$_4$ and K$_2$MnO$_4$, which one is paramagnetic and why?
Write the reaction of D-Glucose with the following:
(a) HCN (b) Br$_2$ water (c) (CH$_3$CO)$_2$O
Write two differences between DNA and RNA.
Why is molecularity applicable only for elementary reactions and order is applicable for elementary as well as complex reactions?
Why can azeotropic mixture not be separated by fractional distillation?
Assertion (A): First ionisation enthalpy of Cr is lower than that of Zn.
Reason (R): Zinc is a non-transition element.
With increase in atomic number, the melting point of transition metals :
Write the reaction involved in the following :
Clemmensen reduction
An organic compound (X) having molecular formula C$_5$H$_{10$O can show various properties depending on its structures. Draw each of the structures if it :
shows Cannizzaro reaction.
Answer the following question:
Name two elements of 3d series for which the third ionisation enthalpies are quite high.
Complete the following ionic equations :
5SO$_3^{2-}$ + 2MnO$_4^-$ + 6H$^+$ ⟶ ?
Account for the following :
(I) The E$^\circ_{Mn^{2+}/Mn}$ value for manganese is highly negative, whereas E$^\circ_{Mn^{3+}/Mn^{2+}}$ is highly positive.
Calculate the emf of the following cell at 25$^\circ$C :
Zn(s) $\mid$ Zn$^{2+}$ (0.1 M) $\parallel$ H$^+$ (0.01 M) $\mid$ H$_2$(g) (1 bar), Pt(s)
Given: E$^\circ_{Zn^{2+}/Zn}$ = –0.76 V, E$^\circ_{2H^+/H_2}$ = 0.00 V, log 10 = 1
How can you convert propanenitrile to 1-aminopropane?