List of top Chemistry Questions

Calculate the molar mass of a nonvolatile solute if 6.4 g of it dissolved in 100 g water produces a relative lowering in vapour pressure of \(0\cdot 016\) at 300 K.
Identify colour change when NaCl solution is titrated against \(\text{AgNO}_3\) solution using fluorescein indicator.
Which from the following metal chlorides does not contain water of crystallisation ?
Identify the product 'B' in the following reaction
\(\text{Toluene}\overset{\text{Chromyl chloride}/\text{CS}_2\,}{\rightarrow }A\overset{\text{H}_3\text{O}^+\,}{\rightarrow }B\)
What is the name of second lower homologue of \(\text{CH}_3(\text{CH}_2)_2\text{COOH}\) ?
Identify the 'A' in the following reaction.
\(\text{CaC}_2+\text{H}_2\text{O}\rightarrow \text{A}+\text{Ca(OH)}_2\)
How many chiral carbon atoms are present in 2-Iodo-3, 4, 5-trimethylhexane ?
What is the pH of resulting solution when \(20\text{ mL }\frac{M}{10}\text{ NaOH}\) and \(10\text{ mL }\frac{M}{10}\text{ H}_2\text{SO}_4\) are mixed together ?
Identify oxidation number of Sulphur respectively in \(\text{SO}_2\) and \(\text{SO}_4^{2-}\) .
The solubility of sapringly soluble salt \(\text{AB}_2\) is \(18\cdot 78\times 10^{-4}\text{ g/dm}^3\) What is its solubility product ? (Molar mass of \(\text{AB}_2 = 187\cdot 8\text{ g mol}^{-1}\))
Which of the following processes is an endothermic ?
Which of the following is correct relationship between solubility and solubility product for silver oxalate ?
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 ?
Identify the number of lone pair and bond pair electrons present in the valence shell of central atom in \(\text{BrF}_3\).
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
\(\Delta _fH^{\circ}(\text{CO}) = -110\text{ kJ mol}^{-1}\)
\(\Delta _fH^{\circ}(\text{CO}_2) = -393\text{ kJ mol}^{-1}\)
Which of the following statements regarding Pi \((π)\) bond is NOT true ?
Find the energy of third stationary orbit of Bohr's model of hydrogen atom if the energy of ground state is \(-E\) J
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 polymers is used to obtain articles like rain coats?
Which from following oils is mainly a saturated fats?
Which from following compounds is used to prepare adipic acid, enzymatically in Green technology developed by Darth and Frost?
Which from following amino acids does NOT contain chiral carbon?
Identify correct decreasing order of basic strength of amines