Chemistry-
General
Easy
Question
The molecular weight of benzoic acid in benzene as determined by depression in the freezing point method corresponds to
- Ionization of benzoic acid
- Dimerization of benzoic acid
- Trimerization of benzoic acid
- Solvation of benzoic acid
The correct answer is: Dimerization of benzoic acid
Molecular weight of benzoic acid in benzene is determined by the depression in freezing point method, and comes out to be 244. The actual molecular mass is 122. Therefore, it corresponds to the dimers which are formed by hydrogen bonding
Related Questions to study
Chemistry-
When mercuric iodide is added to the aqueous solution of potassium iodide,
When mercuric iodide is added to the aqueous solution of potassium iodide,
Chemistry-General
Chemistry-
An example of colligative property is
An example of colligative property is
Chemistry-General
Chemistry-
A molal solution is one that contains 1 mol of a solute in
A molal solution is one that contains 1 mol of a solute in
Chemistry-General
Chemistry-
Which condition is not satisfied by an ideal solution?
Which condition is not satisfied by an ideal solution?
Chemistry-General
Chemistry-
Based on the given diagram, which of the following statements regarding the solutions of two miscible volatile liquids are correct?
1.Plots AD and BC show that Raoult''s law is obeyed for the solution in which B is a solvent and A is the solute and as well as for that in which. A is solvent and B is solute
2.Plot CD shows that Dalton''s law of partial pressures is observed by the binary solutions of components A and B
3.; and AC and BD corresponds to the vapour pressures of the pure solvents A andB,respectively
Select the correct answer using the codes given below: Codes:
Based on the given diagram, which of the following statements regarding the solutions of two miscible volatile liquids are correct?
1.Plots AD and BC show that Raoult''s law is obeyed for the solution in which B is a solvent and A is the solute and as well as for that in which. A is solvent and B is solute
2.Plot CD shows that Dalton''s law of partial pressures is observed by the binary solutions of components A and B
3.; and AC and BD corresponds to the vapour pressures of the pure solvents A andB,respectively
Select the correct answer using the codes given below: Codes:
Chemistry-General
Chemistry-
For a dilute solution, Raoult’s law states that
For a dilute solution, Raoult’s law states that
Chemistry-General
Chemistry-
A mixture of benzene and toluene forms
A mixture of benzene and toluene forms
Chemistry-General
Chemistry-
on reaction within aqueous solution gives blue colour. These are separated by a semi-permeable membrane AB as shown. Due to osmosis, there is
on reaction within aqueous solution gives blue colour. These are separated by a semi-permeable membrane AB as shown. Due to osmosis, there is
Chemistry-General
Chemistry-
The molalfreezing point constant of water is 1.86 K , If 342 g of cane sugar (is dissolved in 1000 g of water, the solution will freeze at
The molalfreezing point constant of water is 1.86 K , If 342 g of cane sugar (is dissolved in 1000 g of water, the solution will freeze at
Chemistry-General
Physics-
for = 180, where K = 1Kg/N. Then direction and magnitude of friction force on contact surface will be
for = 180, where K = 1Kg/N. Then direction and magnitude of friction force on contact surface will be
Physics-General
Physics-
The value of angle q for which spool will not move and not rotate.
The value of angle q for which spool will not move and not rotate.
Physics-General
Physics-
A disc of mass m and radius R is moving on a horizontal surface. If force F is acting on the disc. Then find the angular acceleration of disc
A disc of mass m and radius R is moving on a horizontal surface. If force F is acting on the disc. Then find the angular acceleration of disc
Physics-General
Physics-
Two dielectrics of equal size are inserted inside a parallel plate capacitor as shown. With what factor the effective capacitance increases ?
Two dielectrics of equal size are inserted inside a parallel plate capacitor as shown. With what factor the effective capacitance increases ?
Physics-General
Physics-
A capacitor of capacitance C is connected to a cell of emf V and when fully charged, it is disconnected. Now the separation between the plates is doubled. The change in flux of electric field through a closed surface enclosing the capacitor is
A capacitor of capacitance C is connected to a cell of emf V and when fully charged, it is disconnected. Now the separation between the plates is doubled. The change in flux of electric field through a closed surface enclosing the capacitor is
Physics-General
Physics-
An electron in Bohr’s hydrogen atom has an energy of –3.4 eV. The angular momentum of the electron is
An electron in Bohr’s hydrogen atom has an energy of –3.4 eV. The angular momentum of the electron is
Physics-General