List of top Chemistry Questions

The IUPAC name for
4-oxopentanoic acid
Amphoteric Oxide among the oxide
In oxygen and carbon molecule the bonding is
Element X, Y and Z have atomic number 19, 37 and 55 respectively. Which of the following statements is true about them
If the wavelength of photon is \(2.2 \times 10^{-11}\) and \(h = 6.6 \times 10^{-34} \, \text{Js}\). Then momentum of photon
An Aqueous solution of Alcohol contains 18 g of water and 414 g of ethyl alcohol .The mole fraction of water is
The work done when 2 moles of an ideal gas expands reversibly and isothermally from a volume of 1L to 10L at 300 K is (R = 0.0083 kJK mol-1)
The Volume of 2.8 g CO at 27 degree C and 0.821 atm pressure is (R = 0.08210 Lit. atm \(\text{K}^{-1} \text{mol}^{-1}\))
Which is the most VISCOUS?
Which of the following is an unsaturated hydrocarbon?
The number of sigma (σ) and pi π bonds in C2H2 molecule is
Which of the following metals liberates H2 on reaction with steam but not with cold water?
Which of the following ores undergoes roasting?
Which of the following is not a sulphide ore?
Highest abundant metal in earth's crust is
Which among the following theories explained both shape and strength of the bond in covalent compounds?
What is the hybridization in H2O molecule?
Which of the following is correct regarding the melting points of ionic, polar covalent and non-polar covalent compounds?
Which type of bond is formed due to transfer of electrons between two dissimilar atoms?
What is the family name of VII A group elements?
An element with atomic number 14 has a valency of
Which of the following periodic classifications is not based on the atomic weights of elements?
The maximum number of electrons that can be accommodated in a subshell with angular momentum quantum number l is
Which among the following is a non-metal?
The electronic configuration of element 'S' is