List of top Chemistry Questions asked in MHT CET

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 statements is correct regarding the cathode of electrochemical cell ?

Which of the following solutions will have the highest electrical conductivity?

Which of the following is a water-in-oil type of emulsion?

The rate constant of a reaction is \(k = 3.28\times 10^{-4}\) s\(^{-1}\). Find the order of the reaction.

The half-life of a first-order reaction is \(20\) minutes. What is the rate constant (in min\(^{-1}\)) for this reaction?

Which of the following statements is NOT true about solubility?

Which of the following reaction is possible at anode?

Which from following ionic crystals exhibits Frenkel defect?

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\(^{-1}\))

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 = \(0.9964\)]

An ionic compound is formed by elements X and Y. Element Y forms a face-centered cubic (FCC) lattice, and element X occupies one-third of the tetrahedral voids. What is the formula of the compound?

A metal crystallizes to form simple cubic unit cell. Calculate the void volume of unit cell. [\(a = 3.36\times 10^{-8}\) cm]

Which of the following is correct decreasing order of acidic strength for the compounds listed below?
I: p-chlorophenol, II: p-Cresol, III: p-nitrophenol, IV: p-methoxyphenol.

What is the product of decarboxylation of anhydrous sodium benzoate?

Among the following, the most stable carbocation is

What is the nature of \(\text{Al}_2\text{O}_3\)?

Find the pH of a solution formed by mixing equal volume of solution of \(0.1\) M sodium propionate and \(0.1\) molar propionic acid.
(Given The dissociation constant of propionic acid is \(1.3\times 10^{-5}\))

What is the concentration of hydrogen ion in the solution when the concentration of hydroxyl ion is \(0.08\) mol / dm\(^3\) at \(298\) K ?

What is oxidation state of oxygen in \(\text{OF}_2\) and in \(\text{KO}_2\) respectively?

Which of the following ions are responsible for hardness of water?

Identify the elements of alkali metals and alkaline earth metals respectively having highest 1st ionization enthalpy.

In which of the following processes the internal energy of system remain constant?

A gas occupies a volume of \(0.35\) dm\(^3\) at \(290\) K and \(2\) atm. Pressure. Calculate the volume of gas at STP.

A gas expands from a volume of \(1\) dm\(^3\) to \(1.25\) dm\(^3\) under a pressure of \(1\) bar. Find the change in internal energy if \(150\) J of heat is supplied to the system.