List of top Chemistry Questions

At 293 K, the Henry law constant in water for N$_2$ and O$_2$ are 76.48 k bar and 34.86 k bar respectively. What is the ratio of mole fractions of N$_2$ and O$_2$ in water? (Assume partial pressures of N$_2$ and O$_2$ same at 293 K)
At 298 K, if the vapour pressure of pure liquids toluene, benzene, chloroform and dichloromethane are 60, 160, 200 and 415 torr respectively. Then which liquid is having high boiling point?
Which one of the following is a semiconductor?
Consider the following statements for a gold sol: I) It is macromolecular colloid II) It is a lyophobic sol III) It is a negatively charged sol IV) It is a multimolecular colloid V) It is an associated colloid The correct statements are:
A reaction, 3X(g) $\rightarrow$ 2Y(g) + Z(g) takes place in a closed vessel. What is the rate of formation of Y (in mol L$^{-1}$ s$^{-1}$) if the rate of disappearance of X is 7.2 $\times$ 10$^{-3}$ mol L$^{-1}$ s$^{-1}$?
Among the following, the incorrect statement is:
Which of the following reactions is not correct?
The compounds having coordinated water are:
I. CrCl$_3$.6H$_2$O
II. BaCl$_2$.2H$_2$O
III. CuSO$_4$.5H$_2$O
Match the following
graphite
The following data is obtained for one mole of a gas. The gas behaves as an ideal gas in the pressure range (in bar)
gas behaves as an ideal gas
If one litre of an ideal gas at a pressure of 20 atm expands isothermally and reversibly to a final volume of 'X' L by absorbing 92.12 L.atm heat, 'X' (in L) is
The number of extensive and intensive properties in the following list is respectively: Mass, temperature, pressure, enthalpy, heat capacity, internal energy, density
At T (K), a gaseous mixture of H$_2$ and O$_2$ containing 20% (weight/weight) of H$_2$ exerts a total pressure of 2 bar. What is the partial pressure of O$_2$ (in bar)?
In which of the following, orbitals are correctly arranged in the increasing order of their energies?
The energy (in J) released when an excited electron of 5$^{\text{th}}$ orbit of hydrogen atom returns to its ground state is
The correct order of the metallic nature of the following elements is
The sequence of reagents required to convert aniline to benzene nitrile are
What are 'X' and 'Y' in the following reaction?
conc.naoh
Which of the following hormones modulate inflammatory reactions?
Which of the following reagents will convert isobutyraldehyde to the corresponding acid?
Correct statements with respect to morphine (X) and Veronal (Y) are
A) Both X and Y are sleep producing agents
B) X is hypnotic and Y is analgesic
C) X is analgesic and Y is hypnotic
D) X is non-narcotic analgesic and Y is antidepressant
What are 'X' and 'Y' respectively in the following reaction sequence?
styrene
Chlorocyclohexane is
Which of the following are fibrous proteins? Keratin, Insulin, Myosin, Albumin
This equation represents the preparation of gold sol by \[ 2 \, \text{AuCl}_3 + 3 \, \text{CHO} + 3 \, \text{H}_2 \text{O} \rightarrow 2 \, \text{Au} + 3 \, \text{HCOOH} + 6 \, \text{HCl} \]