List of top Chemistry Questions

Write the structural formula and I.U.P.A.C. name of D-glucose. How will you prove the presence of aldehyde group in glucose molecule?
Write the structural formula of benzaldehyde. Write chemical equations of the reaction of benzaldehyde with (A) NH$_2$NH$_2$, (B) Tollen’s reagent and (C) NaOH.
Write the reaction between NO (g) and O\(_3\) (g).
What are tetrahedral voids?
Reaction of NaNO\(_3\) and H\(_2\)SO\(_4\).
Write I.U.P.A.C. name of CH\(_3\)CH\(_2\)OCH\(_2\)CH\(_2\)CH\(_3\).
Reaction of nitric acid and zinc.
Reaction of conc. HNO\(_3\) with I\(_2\).
Explain the method of preparation of ozone gas by electric discharge method.
Write balanced chemical equation of the reaction of ethanamine with NaNO\(_2\) + dil. HCl.
Write balanced chemical equation of the reaction of ethanamine with Hinsberg reagent.
Which of 0.1 M urea and 0.1 M NaCl will have more osmotic pressure? Explain with reason.
Explain the following: (A) Conductance, (B) Cell constant.
Phenol shows acidic character but ethanol remains approximately neutral. Why?
State any four properties of d-block elements.
Silver forms ccp lattice. Edge length of its unit cell is 408.6 pm. Calculate the density of silver. (Atomic weight of Ag = 108)
Find oxidation number and coordination number of Fe in K\(_4\)[Fe(CN)\(_6\)].
Explain hybridisation on Ni in [Ni(CN)\(_4\)]\(^{2-}\).
Write the formula of half-life period for first order reaction.
In a first order reaction the concentration of a substance gets dissociated by 99% of the initial concentration in 100 minutes. Calculate the velocity constant of the reaction.
Calculate the osmotic pressure of 5% aqueous urea solution (w/v) at 27$^\circ$C. Molecular weight of urea = 60. (R = 0.0821 L atm K$^{-1}$ mol$^{-1}$)
State Hardy–Schulze law.
Unit of specific conductance is:
Non-electrolyte is:
State the name and formula of electrophile used in the nitration of benzaldehyde.