List of top Chemistry Questions

Identify correct decreasing order of basic strength of amines
Which from following compounds is used to prepare adipic acid, enzymatically in Green technology developed by Darth and Frost?
Identify ' Z' in the following reaction.
Which among the following is allylic halide?
Which from the following is a correct decreasing order of boiling points for following organic compounds ?
Identify trihydric phenol from following.
When will be the acidic character of carboxylic acid higher in following cases ?
Which from following compounds has lowest thermal stability?
Identify the total number of complexes from following list having monodentate ligands in them
(a) Tetracyanonickelate (II) ion
(b) Potassium hexafluoroaluminate (III)
(c) Tetraamminecopper(II) ion
(d) Potassium trioxalatoaluminate (III)
Which from following catalysts is used in contact process of industrial production of sulfuric acid using \(\text{SO}_2\) and \(\text{O}_2\) (air).
Why transition elements have more tendency to form interstitial compounds?
Which of the following reactions is used for the preparation of alkyl fluorides from alkyl chlorides?
Identify a nanomaterial having all three dimensions less than 100 nm?
Which from following is NOT an example of oil in water emulsion?
If time required for 90 % completion of a first order reaction is '\(t\)'. What is the time required for 99.9 % completion of reaction at same temperature?
Half life of zero order reaction is 1 hour. If initial concentration of reactant is 2.0 mol \(\text{L}^{-1}\), find the time required to decrease concentration from 0.50 to 0.25 mol \(\text{L}^{-1}\)
What is the term used for the minimum kinetic energy required for the reactant molecules to undergo reaction?
Calculate the molar mass of nonvolatile solute when 4 g of it is dissolved in 100 g solvent that boils at 319.4 K [\(K_b\) = 2.4 K kg \(\text{mol}^{-1}\); B.P of pure solvent = 319 K]
Which of the following concentrations of solutions of urea in water exhibits minimum freezing point depression?
The conductivity of 0.02 M of KCl solution at 298 K is 0.0123 \(\text{ohm}^{-1} \text{cm}^{-1}\). If the resistance of the cell containing this solution is 120 ohms, what is the value of the cell constant ?
If the emf of cell, \(\text{Cu}_{(s)}|\text{Cu}_{(1M)}^{2+}|\text{Ag}_{(1M)}^+|\text{Ag}\) is 0.463 V at \(25 ^{\circ}\text{C}\) and standard potential of Cu electrode is 0.337 V. Find the standard potential of Ag electrode
Which of the following hot aqueous solutions is used to dip carbon rods of \(\text{H}_2-\text{O}_2\) fuel cell ?
Calculate van't Hoff factor for aqueous solution of 0.02 m formic acid if it freezes at -0.045 \(^{\circ}\text{C}\).
[ \(K_f\) = 1.86 K kg \(\text{mol}^{-1}\) and freezing point of water = \(0 ^{\circ}\text{C}\) ]
Which from following elements is NOT present in mustard gas?
Alkenes on oxidation with \(\text{KMnO}_4\) in dil \(\text{H}_2\text{SO}_4\) forms