List of top Chemistry Questions

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.
Complete the following ionic equations :
5SO$_3^{2-}$ + 2MnO$_4^-$ + 6H$^+$ ⟶ ?
Answer the following question:
Name two elements of 3d series for which the third ionisation enthalpies are quite high.
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.
How can you convert propanenitrile to 1-aminopropane?
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
Give reasons for the following:HCHO is more reactive than CH$_3$CHO towards addition of HCN.

Write structure of the products of the following reactions:

Vinyl group directly attached with carboxylic acid should decrease acidity due to resonance, but it increases acidity. Explain.
Give reasons for the following:
Benzoic acid does not undergo Friedel-Crafts reaction.
Peptide linkage and Glycosidic linkage
What is meant by negative deviation from Raoult’s law? Give an example. What type of azeotrope is formed by negative deviation?

Assertion (A): Maltose is a reducing sugar.
Reason (R): One of the two glucose units can open to expose free aldehydic group in solution.

Essential amino acids and Non-essential amino acids
Write two differences between Amylose and Amylopectin components of starch.
Phenol reacts with Bromine (Br$_2$) water to form:
An amine ‘X’ reacts with Hinsberg reagent and the product obtained is insoluble in alkali. The amine ‘X’ is:
‘Scurvy’ is caused due to the deficiency of:
The number of moles of AgCl precipitated when excess AgNO$_3$ solution is mixed with one mole of [Co(NH$_3$)$_4$Cl$_2$]Cl is:
Unit of rate constant ‘k’ for a second order reaction is:
The synthesis of alkyl fluoride is best carried out by:

In the reaction R–OH + HCl $\xrightarrow{\text{ZnCl}_2}$ RCl + H$_2$O, what is the correct order of reactivity of alcohols?

Kohlrausch gave the following relation for strong electrolytes:
$\Lambda_m = \Lambda_m^0 - A\sqrt{C}$
Which of the following equality holds true?
Which of the following solution in water will have the lowest freezing point?