List of top Questions asked in MHT CET

Which of the following statement is NOT correct about solution?
Enthalpy of fusion and enthalpy of vaporization for water respectively are 6.01 kJ mol\(^{-1}\) and 45.07 kJ mol\(^{-1}\) at 0°C. What is enthalpy of sublimation at 0°C?
In the reaction: \[ 2 \text{KClO}_3 (s) \rightarrow 2 \text{KCl} (s) + 3 \text{O}_2 (g) \quad \Delta H = -78 \, \text{kJ} \] If 33.6 L of oxygen gas is liberated at S.T.P., what is the mass of KClO\(_3\) produced?
In resonance hybrid of ozone molecule, O-O bond length is
Which of the following changes will cause an increase in vapor pressure of 1 molal aqueous KI solution at the same temperature?
Which of the following is a character of catalyst?
Identify the decreasing order of boiling point of alkanes (i) n-pentane (ii) Isopentane (iii) Neopentane
Which of the following oxyacid of sulfur contains S=S linkage?
Methoxy ethane on reaction with hot concentrated HI gives
When alkyl halide is boiled with large excess of alcoholic ammonia it forms
Which of the following pairs of solution is isotonic?
(Molar mass of urea = 60, sucrose = 342 g mol\(^{-1}\))
Two coaxial coils A and B of radii \( R_1 \) and \( R_2 \) are placed in the same plane. (\( R_2 \geq R_1 \)). If a current is passed through coil B, the coefficient of mutual inductance between the coils is proportional to
Two satellites \( A \) and \( B \) are revolving with critical velocities \( v_A \) and \( v_B \) around the earth, in circular orbits of radii \( R \) and \( 2R \), respectively. The ratio \( \frac{v_A}{v_B} \) is
Ordinary bodies \( A \) and \( B \) radiate maximum energy with wavelength difference 4μm. The absolute temperature of body \( A \) is 3 times that of body \( B \). The wavelength at which body \( B \) radiates maximum energy is
A metal ball of mass 2 kg moving with a speed of 10 m/s had a head-on collision with a stationary ball of mass 3 kg. If after collision, both the balls move together, then the loss in kinetic energy due to collision is
A charge \( q \) moving with velocity \( v \) in a magnetic field of induction \( B \), experiences force \( F \). The angle between \( v \) and \( B \) is \( \theta \). The speed of \( q \) after one second will be
A wire of length 10 cm is gently placed horizontally on the surface of water having surface tension of \( 75 \times 10^{-3} \, \text{N/m} \). What force is required to just pull up the wire from the water surface?
The weight suspended from a spring oscillates up and down. The acceleration of weight will be zero at
A constant force is applied to a metal wire of length \( L \). Volume of the wire is constant. The extension produced is proportional to
The deflection in a moving coil galvanometer is reduced to half when it is shunted with \( X \, \Omega \) coil. The relation between \( X \) and resistance of galvanometer \( G \) is
A thin prism \( P_1 \), with angle \( 4^\circ \) and made from glass of refractive index 1.54, is combined with another thin prism \( P_2 \), made from glass of refractive index 1.72 to produce dispersion without deviation. The angle of prism for \( P_2 \) is
The variation of decay rate with number of active nuclei is correctly shown in graph
The resultant gate and its Boolean expression for the given circuit is
Two spheres \( S_1 \) and \( S_2 \) have same radii but temperatures \( T_1 \) and \( T_2 \) respectively. Their emissive power is the same and emissivity is in the ratio 1:4. Then the ratio of \( T_1 \) to \( T_2 \) is
A parallel beam of monochromatic light falls normally on a single narrow slit. The angular width of the central maximum in the resulting diffraction pattern