List of top Chemistry Questions asked in MHT CET

The molar conductivity of \(0.8\ \text{M}\) \(\text{BaCl}_{2}\) solution at \(25^{\circ }\text{C}\) is \(220\ \Omega ^{-1}\text{cm}^{2}\text{mol}^{-1}\). Calculate its conductivity.
The rate constant for a first order reaction is \(6.93\times 10^{-2}\) per minutes. What is the time required for the completion of \(99.9\%\) of the reaction?
Which of the following statements is NOT true about the decomposition of ammonia on platinum metal?
Which of the following laws describes the relationship between solubility of gas in a liquid and the pressure of the gas over the solution at a given temperature?
What type of solid is the diamond?
\(0.5\) molal aqueous solution of a weak acid (HX) is \(20\%\) ionized. If \(K_{f}\) for water is \(1.86\ \text{K kg mol}^{-1}\) Calculate the lowering in freezing point of the solution.
Calculate the atomic radius of an element having edge length \(3.61\times 10^{-8}\ \text{cm}\) for fcc structure.
Calculate the standard Gibbs energy for the following cell reaction,
\(\text{A(s)}+\text{B}^{2+}\text{(aq)}\rightarrow \text{A}^{2+}\text{(aq)}+\text{B(s)}\), if \(E_{cell}^{\circ }\) is \(0.556\ \text{V}\).
Which of the following alkenes forms formaldehyde and acetaldehyde on ozonolysis?
Which of the following mixtures is water gas?
Which of the following information is given by XRD technique?
Identify the correct order of the priority of the following functional group.
If the edge length of a bcc unit cell is \(300\ \text{pm}\). Calculate the body diagonal.
The IUPAC name of Neo-pentyl chloride is _____
Dissociation constant values for \(\text{H}_{2}\text{CO}_{3}\), \(\text{CH}_{3}\text{COOH}\), HCN, and HF are \(4.3\times 10^{-7}\), \(1.8\times 10^{-5}\), \(4.0\times 10^{-10}\) and \(7.2\times 10^{-4}\) respectively, at \(25^{\circ }\text{C}\). Identify the correct order of their increasing acid strength.
In which of the following changes, entropy of the system decreases?
Find the average oxidation number of sulphur in tetrathionate ion.
Calculate the pH of the resulting solution obtained by mixing \(60\ \text{mL}\) \(0.1\ \text{M}\) HCl and \(40\ \text{mL}\) \(0.1\ \text{M}\) NaOH.
A gas is compressed by an average pressure of \(0.50\) atmosphere, so as to decrease its volume from \(400\ \text{cm}^{3}\) to \(200\ \text{cm}^{3}\). What will be the work done in this case?
If \(K_{a}\) of weak acid HA is \(1\times 10^{-7}\), calculate the \([\text{H}_{3}\text{O}^{+}]\) of \(0.1\ \text{M}\) solution at equilibrium.
Enthalpy of combustion of carbon to carbon dioxide is \(-390\ \text{kJ/mol}\). What is the amount of heat released when \(35\ \text{g}\) of carbon dioxide is formed from the reaction of carbon and dioxygen gas?
Identify the hybridization in \(\text{BF}_{3}\) molecule.
Find the number of molecules in \(0.25\ \text{m}^{3}\) of the gas at a pressure \(2.0\times 10^{2}\ \text{kPa}\) and a temperature \(300\ \text{K}\). \([R=8.314\ \text{J K}^{-1}\text{mol}^{-1}]\)
The '\(x\)' moles gas is allowed to expand isothermally and reversibly from \(10\ \text{dm}^{3}\) to \(20\ \text{dm}^{3}\) at \(300\ \text{K}\) and \(-17290\ \text{J}\) work is obtained. Find the value of '\(x\)'. \([2.303\times R=19.15\ \text{J K}^{-1}\text{mol}^{-1}]\)
Identify a hydride with highest boiling point from following?