List of top Questions asked in MHT CET- 2020

Identify the mineral of iron from the following.

The unknown resistances are connected in two gaps of a metre bridge. The null point is at 20 cm from zero end. A resistance of 15 \( \Omega \) is connected in series with the smaller of the two. The null point shifts to 40 cm. The smaller resistance is

Identify 'A' in the following reaction
C\(_2\)H\(_5\)OH + HCl \(\xrightarrow{A}\) C\(_2\)H\(_5\)Cl + H\(_2\)O

Which of the following reactions proves the chlorinating property of phosphorus pentachloride?

What is the oxidation number of Fe in K\(_3\)[Fe(CN)\(_6\)]?

In somatic reflexes, the effectors are located in ..................

When a lens of refractive index $\mu_1$ is placed in a liquid of refractive index $\mu_2$, the lens looks to be disappeared only if

When a certain metallic surface is illuminated with monochromatic light of wavelength $\lambda$, the stopping potential for photoelectric effect is $3V_0$. If the same surface is illuminated with light of wavelength $2\lambda$, the stopping potential is found as $V_0$. The threshold wavelength for this surface is

What is the unit of rate constant for the zero-order reaction?

Which of the following polymers is used to obtain adhesives?

The maximum velocity of the photoelectron emitted by the metal surface is \( v \). Charge and mass of the photoelectron is denoted by \( e \) and \( m \) respectively. The stopping potential in volt is

In recombinant DNA technology after the bacteriophage infects a bacterial cell, plaques are formed by the _________

Thebesian valve guards the opening of ___________.

What will be the volume of oxygen gas produced, If the reaction
2 KClO\(_3\)(s) \(\rightarrow\) 2 KCl(s) + 3 O\(_2\)(g) \(\Delta H^\circ = -78 \, \text{kJ}\)
is carried out at S.T.P.?

The threshold wavelengths for photoelectric emission from two metals A and B are 400 nm and 800 nm respectively. The ratio of their work functions \(\phi_A\) to \(\phi_B\) is

Which of the following benzylic alcohol is tertiary alcohol?

Scala tympani of membranous labyrinth ends at A which opens into B. Identify A and B and select correct option.

How many optical isomers are possible for a compound having 3 asymmetric carbon atoms?

For a prism, \( A \) is the angle of the prism, \( \delta \) is the angle of deviation, \( \mu \) is the refractive index of the material of a prism, the refractivity of the material of a prism is

What is the site of action of antihistamine?

The electronic configuration of Be$_2$ molecule according to MOT is

Identify the monomers used in preparation of PHBV polymer.

Which of the following solution will have highest freezing point depression?

A wheel is at rest in horizontal position. Its moment of inertia about vertical axis passing through its center is \( I \). A constant torque \( \tau \) acts on it for \( t \) seconds. The change in rotational kinetic energy is

A rotating body has angular momentum $L$. If its frequency of rotation is halved and rotational kinetic energy is doubled, its angular momentum becomes