List of practice Questions

Hydrogen atom of chloroform is acidic in nature.
Potassium cyanide gives alkyl cyanide on reaction with haloalkanes (R-X) while silver cyanide forms an isocyanide as main product.
How will you synthesize the following? Give chemical equations only.
(i) 1-phenylethanol from a suitable alkene (ii) Cyclohexylmethanol with the help of alkyl halide by \( S_N2 \) reaction. (iii) Pentan-1-ol from a suitable alkyl halide.
Write the oxidation states, distribution of d-orbitals and coordination number of central metal of following complexes:
Write important structural and functional differences between DNA and RNA.
Write structural formula and IUPAC name of the following:
(i) sec-butyl chloride
(ii) isopentyl bromide
(iii) tert-butyl chloride
(iv) isobutyl chloride
(v) neopentyl chloride
Haloalkanes give nucleophilic substitution reactions while haloarenes give electrophilic substitution reactions.
Explain Kohlrausch Law. Limiting molar conductances (\( \lambda^0 \)) of \( \text{Ca}^{2+} \) and \( \text{Cl}^- \) ions in water at 298 K are 119.0 S cm\(^2\) mol\(^{-1}\) and 76.3 S cm\(^2\) mol\(^{-1}\) respectively. Calculate \( \lambda^0_m \) of \( \text{CaCl}_2 \).
Why do the conductivity of a solution decreases with dilution? Explain with reason.
Differentiate between:
(x) Order of a reaction and molecularity
(y) Average and instantaneous velocity
Write IUPAC name of the following complexes: (x) \([Co(NH_3)_5Cl]Cl_2\) , (y) \(K_2[Ni(CN)_4]\)
Why metals show their maximum oxidation states in oxides and fluorides?
Transition metals generally form coloured compounds.
Differentiate between the following:
(i) Propanal and Propanone,
(ii) Phenol and Benzoic acid.
The resistance of a column formed by a 0.10 mol L^{-1} concentrated solution is 6.5 × 10^3 ohm. Its diameter is 1 cm and length is 50 cm. Calculate its resistivity, conductivity and molar conductivity.
Explain the following reactions with suitable chemical equations:
(i) Wurtz reaction
(ii) Wurtz-Fittig reaction
Alcohols are more soluble in water in comparison to hydrocarbons of comparable molecular weight. Explain.
Show the geometrical isomers of \([Fe(NH_3)_2(CN)_4]\).
Reagent, which do not react with acetone and benzaldehyde:
Calculate molality of a solution of 5.0 g of ethanoic acid (CH}_3\textbf{COOH) in 150.0 g of benzene.
How many ions will be generated from the solution of the complex \( [Co(NH_3)_6]Cl_2 \)?
Give an example of such solid solution in which solute is gas.
What is an electrical capacitor? Find the expression for the capacity of a parallel plate capacitor. On which factors does the capacitance depend?
What are electromagnetic waves? Give a brief description of the main properties of electromagnetic waves. The equation for oscillation of the magnetic field of an electromagnetic wave is \( B_y = 8 \times 10^{-6} \sin \left( 2 \times 10^{11} t + 300 \pi x \right)~\text{T \). Find the wavelength and equation for the oscillating electric field. Mention the direction of propagation of the wave also.}
Explain the meaning of rectification. Using a p-n junction diode, draw a circuit diagram of a full-wave rectifier and give a brief description of its working. Give a graphical representation of input and output voltage/current.