List of top Chemistry Questions

Which of the following statements regarding Pi \((π)\) bond is NOT true ?
A gas at \(10\,^{\circ}\text{C}\) occupies a volume of 283 mL. if it is heated to \(20\,^{\circ}\text{C}\) keeping the pressure constant. What is the new volume of gas ?
Find the energy of third stationary orbit of Bohr's model of hydrogen atom if the energy of ground state is \(-E\) J
Calculate the quantity of heat released from system when 2 moles of and ideal gas compressed isothermally from volume \(25\text{ dm}^3\) to \(10\text{ dm}^3\) at constant external pressure 4 bar.
Calculate the standard enthalpy of combustion of carbon monoxide if
\(\Delta _fH^{\circ}(\text{CO}) = -110\text{ kJ mol}^{-1}\)
\(\Delta _fH^{\circ}(\text{CO}_2) = -393\text{ kJ mol}^{-1}\)
Identify the number of lone pair and bond pair electrons present in the valence shell of central atom in \(\text{BrF}_3\).
How many moles of potassium chlorate are heated to produce \(11\cdot 2\) L oxygen at STP ?
Which from following is a homopolymer ?
Which from following oils is mainly a saturated fats?
Which from following polymers is used to obtain articles like rain coats?
Which carbon atom (numbered from 1' to 5') of ribose lacks the oxygen to form deoxyribose ?
Which from following amino acids does NOT contain chiral carbon?
Which from following compounds is used to prepare adipic acid, enzymatically in Green technology developed by Darth and Frost?
Identify the major product obtained when ethyl amine is reacted with excess of methyl iodide ?
Identify correct decreasing order of basic strength of amines
When will be the acidic character of carboxylic acid higher in following cases ?
Which from the following is a correct decreasing order of boiling points for following organic compounds ?
Which among the following is allylic halide?
Identify trihydric phenol from following.
Identify ' Z' in the following reaction.
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 compounds has lowest thermal stability?
Which of the following reactions is used for the preparation of alkyl fluorides from alkyl chlorides?
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?