List of top Questions asked in MHT CET

What is the melting point of zinc?
The H–H bond energy is 430 kJ mol\(^{-1}\) and Cl–Cl bond energy is 240 kJ mol\(^{-1}\). \( \Delta H_f \) for HCl is –90 kJ. Then H–Cl bond energy is
Which among the following compounds is obtained when benzene is treated with CO and HCl in presence of catalyst anhydrous \( \mathrm{AlCl_3} \) and \( \mathrm{Cu_2Cl_2} \) under high pressure?
Which among the following is a first oxidation product of butan-2-ol?
Which among the following polymers is an example of addition polymer?
Dumas method is used for estimation of
Which of the following is NOT correct in hybridisation?
Which of the following metals reacts with dilute \( \mathrm{H_2SO_4} \) ?
Which of the following is NOT a tranquilizer?
Which of the following elements is refined by zone refining?
Which of the following equations shows the relationship between heat of reaction at constant pressure and heat of reaction at constant volume if the temperature is not constant?
The rate of first order reaction \( A \rightarrow B \) is \( 6.3 \times 10^{-6} \, \text{M s}^{-1} \). If \( [A] = 0.3 \, \text{M} \), what is the rate constant of the reaction?
Which among the following oxides of nitrogen, the nitrogen atom contains one unpaired electron?
Five capacitors each of capacitance \(C\) are connected as shown in the figure. The ratio of equivalent capacitance between \(P\) and \(R\) and the equivalent capacitance between \(P\) and \(Q\) is
When a beam of unpolarised monochromatic light is incident on a plane glass plate at a polarising angle, which one of the following statements is correct?
A note produces 4 beats/s with a tuning fork of frequency \(510\,\text{Hz}\) and 6 beats/s with a fork of frequency \(512\,\text{Hz}\). The frequency of the note is
According to Bohr’s postulate, the centripetal force \(F\) necessary for the electron of mass \(m\) in a hydrogen atom to revolve in the \(n^{\text{th}}\) circular orbit round the nucleus as the centre is given by \([e =\) charge on electron, \(h =\) Planck’s constant, \(\varepsilon_0 =\) permittivity of free space\(]\)
A fixed number of spherical drops of a liquid of radius \(r\) coalesce to form a large drop of radius \(R\) and volume \(V\). If \(T\) is the surface tension, then the energy
A microscope will have maximum resolving power if, to illuminate the specimen, it uses light of
For an ideal gas, if the ratio of molar specific heats \(\gamma = 1.4\), then the specific heat at constant pressure \(C_p\), specific heat at constant volume \(C_v\) and corresponding molecule are respectively
The depth of an ocean is \(2000\,\text{m}\). The compressibility of water is \(45 \times 10^{-11}\,\text{m}^2/\text{N}\) and density of water is \(10^3\,\text{kg m}^{-3}\). At the bottom of the ocean, the fractional compression of water will be \((g = 10\,\text{m s}^{-2})\)
An ideal gas occupies a volume \(V\) at pressure \(P\) and absolute temperature \(T\). The mass of each molecule is \(m\). If \(K_B\) is the Boltzmann constant, then the density of the gas is given by
A body performs S.H.M. due to force \(F_1\) with time period \(0.8\,\text{s}\). If the force is changed to \(F_2\), it executes S.H.M. with time period \(0.6\,\text{s}\). Now both the forces act simultaneously in the same direction on the same body. The new periodic time is
A smooth sphere of mass \(M\) moving with velocity \(u\) directly collides elastically with another sphere of mass \(m\) at rest. After collision, their final velocities are \(V'\) and \(V\) respectively. The value of \(V\) is given by
What is the stopping potential, when a metal surface with work function \(1.2\,\text{eV}\) is illuminated with light of energy \(3\,\text{eV}\)?