List of top Chemistry Questions

Which among the following acts as a Lewis acid?
The element that has the highest melting point in the 3d series is:
N\(_2\) exerts partial pressure of 7.698 bar in 1L water at 298K. What is the mole fraction of N\(_2\) in the solution? Given that N\(_2\) = 76.48K bar.
The correct order of boiling point:
CH\(_3\)-CH\(_2\)-CH\(_2\)-CH\(_2\)-NH\(_2\), CH\(_3\)-CH\(_2\)-NH-CH\(_2\)-CH\(_3\), CH\(_3\)-CH\(_2\)-N(CH\(_3\))\(_2\)
Which of the following shows -R effect?
Which of the following amino acids are synthesized in our body?
Which of the following has the smallest ionic radius?
Which shows +6 oxidation state in fluorides?
\(\Delta H\) and \(\Delta S\) value of a reaction which is non-spontaneous at high T and spontaneous at low T is:
Which one of the series of hydrogen spectrum is in the visible region?
Aryl halides react with Na in dry ether gives diphenyls. Name of the reaction is:
Which of the following statement is incorrect?
IUPAC name of the compound [Cr(H\(_2\)O)\(_3\)(NH\(_3\))\(_3\)]Cl\(_3\)
The pKa value of a 0.1 M solution of a weak acid HA with pH = 4 is:
Energy of H atom in ground state is 13.6 eV. No of spectral lines emitted by 'H' atom when a photon of energy 12.75 eV is received?
Which of the following is an extensive property?
Acetanilide is prepared by reacting -------and-------.
Which is a heterocyclic compound?
Phenol can be converted into benzene by treating with:
Which of the following has an expanded octet?
Which of the following is more soluble in water at 298 K?
Square planar compound is:
Which has intramolecular hydrogen bonding?
Ortho nitrophenol, Para nitrophenol
Which among the following shows -R effect?
Which of the following have a complete octet?