List of top Chemistry Questions

Calculate the standard e.m.f. of the following cell:
Zn $\mid$ Zn$^{2+}$ $\parallel$ Cu$^{2+}$ $\mid$ Cu
Given: $E^\circ_{(Zn^{2+}/Zn)} = -0.76 \, V$ and $E^\circ_{(Cu^{2+}/Cu)} = +0.34 \, V$
Noble gas which forms maximum number of compounds is:
Formation of coloured ions is possible due to the presence of:
Explain the Resonance effect in nucleophilic substitution reactions of Haloarenes.
Unit of specific conductance is:
Write chemical equations of reactions of haloalkanes with two metals.
Write chemical equations of five methods of preparation of Carboxylic acid.
Molarity of pure water is:
Write short notes on the following:
(i) Aldol and Crossed Aldol Condensation in Aldehyde and Ketone
(ii) Cannizzaro Reaction
Write chemical equation for identifying primary and secondary alcohol.
Describe the industrial method of preparation of Ammonia giving flow diagram and chemical equation and write chemical equation of the reaction of Ammonia with (i) Copper ion, and (ii) Silver ion.
Explain Crystal Field Theory (CFT) in coordination compounds and write its limitations.
Write chemical equation and mechanism of acid catalysed hydration of Alkene.
Write notes on the following:
(I) Wurtz–Fittig reaction
(II) Sandmeyer reaction
In spite of being an electron withdrawing group, why does chlorine act as ortho-para directing group in aromatic electrophilic substitution reactions?
Write electronic configuration of Cr (Z = 24) and Cu (Z = 29) and also explain two main characteristics of transition elements.
Explain the difference between DNA and RNA.
Explain Adsorption theory of heterogeneous catalysis.
Write Nernst equation and its one application in chemical cells.
Differentiate between primary, secondary and tertiary amines. (Write chemical equations)
Explain average and instantaneous rate of reaction and describe two factors which affect them.
Explain osmotic pressure of solution. Establish a relationship between osmotic pressure of solution and molar mass of solute.
Explain coordination number by an example.
Explain Electrophoresis.
Explain Schottky defect with the help of a diagram.