List of top Chemistry Questions

Which of the following compounds forms starch on polymerization?
What is the correct sequence of the complementary strand for the given portion of a DNA molecule:- 5' - G A C G T A C -3' ?
Name the catalyst used in the manufacture of HDPE polymer.
Which is a weakest acid among the following ?
Which of the following compounds can not form iodoform?
How many moles of hydrogen are liberated when \(6\) moles of ethyl alcohol reacts with sodium metal?
Find the order of formation of alcohol from alkene from the following.
Which of the following compounds dose NOT respond positively to the iodoform test ?
Which of the following favors \(\text{SN}^1\) reaction?
Which of the following statements is correct with respect to \([\text{Mn(CN)}_6]^{3-}\) ?
What is O-O bond length in ozone ?
What is the importance of Sandmeyer's reaction?
Which of the following cations in their oxidation states forms colored compounds ?
Which of the following ions exhibit same value of spin only magnetic moment?
(A). \(\text{Ti}^{3+}\)
(B). \(\text{Cr}^{3+}\)
(C). \(\text{Mn}^{2+}\)
(D). \(\text{Fe}^{3+}\)
(E). \(\text{Sc}^{3+}\)
Choose the most appropriate answer from the options given below.
The half-life of a first-order reaction is \(20\) minutes. What is the rate constant (in min\(^{-1}\)) for this reaction?
The rate constant of a reaction is \(k = 3.28\times 10^{-4}\) s\(^{-1}\). Find the order of the reaction.
Which of the following statements is correct regarding the cathode of electrochemical cell ?
Which of the following is a water-in-oil type of emulsion?
A first order reaction takes \(16\) minutes for it's \(50\%\) completion. What fraction that would react in \(32\) minutes from the beginning?
Which of the following solutions will have the highest electrical conductivity?
Which of the following statements is NOT true about solubility?
A solution is prepared by dissolving \(68\) g sucrose in \(1\) kg water. Calculate the vapour pressure of solution at \(298\) K. [vapour pressure of water at \(298\) K = \(18\) mm of Hg & mole fraction of solvent = \(0.9964\)]
Which from following ionic crystals exhibits Frenkel defect?
Which of the following reaction is possible at anode?
An aqueous solution has an osmotic pressure of \(4.92\) atm at \(300\) K.
Calculate the molarity of the solution.
(\(R = 0.082\) L atm mol\(^{-1}\) K\(^{-1}\))