List of top Questions asked in MHT CET

Which of the following acts as a cathode in a dry cell?
A solution containing 1.2 g nonvolatile solute in 100 g. of a solvent has a boiling point elevation 1.2 K. Calculate the molar mass of solute if molal elevation constant of solvent is \(6.5\ \text{K kg mol}^{-1}\).
A solution contains 50 g of common salt in 500 gm of water. Find the concentration of the solution in terms of percentage.
An element has bcc structure with atomic radius 200 pm. Find the volume of unit cell.
The unit cell of metal contains four particles. Calculate the volume of the unit cell if the molar mass of metal is \(192\ \text{g mol}^{-1}\).
[\(\rho \times N_{A}=1.5\times 10^{25}\ \text{g cm}^{-3}\text{mol}^{-1}\)]
Which of the following is one of the 12 principles of Green Chemistry?
Which of the following formulae is used to find total volume of atoms present in face-centred cubic unit cell?
Chlorination of alkane is a photochemical process. It is initiated by the process of
What is the IUPAC name of \((\text{CH}_{3})_{2}\text{CH-COOH}\)?
Calculate the dissociation constant of a weak monobasic acid if it is 0.04% dissociated in a 0.01M solution.
The hydrogen ion concentration of the ocean is about \(2\times 10^{-9}\ \text{M}\). What is the pOH of ocean?
Which of the following is NOT an intensive property?
Which of the following buffer solutions is used for precipitation of cations of the III A group?
In a reaction,
\(2\text{H}_{2}\text{S}+\text{SO}_{2}\rightarrow 2\text{H}_{2}\text{O}+3\text{S}\)
Identify the substance oxidized.
Which of the following properties increases from fluorine to iodine in group?
Which of the following bonds is expected to be the most polar?
Identify a pair of molecules having zero dipole moment.
Calculate the pressure in atm of 48 g oxygen gas in a \(2\ \text{dm}^{3}\) container at \(27\ ^{\circ }\text{C}\).
[\(R=0.0821\ \text{atm dm}^{3}\ \text{K}^{-1}\ \text{mol}^{-1}\)]
What would be the heat released in kJ when \(450\ \text{cm}^{3}\) of \(0.02\ \text{M}\ \text{H}_{2}\text{SO}_{4}\) is mixed with \(650\ \text{cm}^{3}\) of \(0.1\text{M}\ \text{NaOH}\)? (Heat of neutralization of \(\text{H}_{2}\text{SO}_{4}\) and \(\text{NaOH}\) is \(-114\ \text{kJ/mol}\) of \(\text{H}_{2}\text{SO}_{4}\))
A certain organic solvent has \(\Delta H_{\text{vap}}=28.50\ \text{kJ mol}^{-1}\) and \(\Delta S_{\text{vap}}=88.2\ \text{J K}^{-1}\ \text{mol}^{-1}\) at 1 bar. Calculate its normal boiling point (where \(\Delta G=0\)).
Which of the following elements has an electronic configuration, \([\text{Ar}]\ 4s^{2}\) ?
Calculate the number of atoms in 52 moles of argon.
A full-wave rectifier provides a DC output voltage of \(20\ \text{V}\). If the root mean square (RMS) value of the unwanted AC component is measured as \(2\ \text{V}\), the ripple factor in percentage is
If the current gain in common-base configuration (\(\alpha\)) of a transistor increases from 0.95 to 0.96, the percentage change in current gain in common-emitter configuration (\(\beta\)) is approximately
Calculate the energy associated with an electron in the first orbit of hydrogen atom?