NEET 2023 Question Paper with Solutions

The amount of energy required to form a soap bubble of radius 2 cm from a soap solution is nearly: (surface tension of soap solution =

Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is 0.15 (g = 10 m \(s^{-2}\)).

A satellite is orbiting just above the surface of the earth with period T. If d is the density of the earth and G is the universal constant of gravitation the quantity \(\frac{3\pi}{Gd}\) represents:

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm potential energy stored in it will be:

The angular acceleration of a body moving along the circumference of a circle is: along the radius towards the centre along the tangent to its position along the axis of rotation along the radius away from centre

Amongst the following the total number of species NOT having eight electrons around central atom in its outer most shell is \(NH_3 AlCl_3 BeCl_2 CCl_4 PCl_5\): 2 4 1 3

Amongst the given options which of the following molecules/ion acts as a Lewis acid? \(H_2O\) \(BF_3\) \(OH^-\) \(NH_3\)

The equilibrium concentrations of the species in the reaction \(A+B \rightleftharpoons C+D\) are 23 10 and 6 mol \(L^{-1}\) respectively at 300 K. \(\Delta G^\circ\) for the reaction is (R=2 cal/mol K) -137.26 cal -1381.80 cal -13.73 cal 1372.60 cal

Taking stability as the factor which one of the following represents correct relationship?

The number of \(\pi\) bonds \(\sigma\) bonds and lone pair of electrons in pyridine respectively are: 123 0 113 1 122 1 1120

For Young's double slit experiment two statements are given below: Statement I: If screen is moved away from the plane of slits angular separation of the fringes remains constant. Statement II: If the monochromatic source is replaced by another monochromatic source of larger wavelength the angular separation of fringes decreases. In the light of the above statements choose the correct answer from the options given below

For the following logic circuit the truth table is: Circuit Description: Input $A$ passes through a NOT gate to produce $\overline{A}$, and input $B$ passes through a NOT gate to produce $\overline{B}$. Both inverted signals feed into the inputs of a NAND gate to produce the output $Y$.

A 12 V 60 W lamp is connected to the secondary of a step down transformer whose primary is connected to ac mains of 220 V. Assuming the transformer to be ideal what is the current in the primary winding?

Given below are two statements: Statement I: Photovoltaic devices can convert optical radiation into electricity. Statement II: Zener diode is designed to operate under reverse bias in breakdown region. In the light of the above statements choose the most appropriate answer from the options given below

The magnetic energy stored in an inductor of inductance \(4\mu H\) carrying a current of 2 A is:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A reaction can have zero activation energy. Reason R: The minimum extra amount of energy absorbed by reactant molecules so that their energy becomes equal to threshold value is called activation energy. In the light of the above statements choose the correct answer from the options given below

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: In equation \(\Delta_r G = -nFE_{cell}\) value of \(\Delta_r G\) depends on n. Reason R: \(E_{cell}\) is an intensive property and \(\Delta_r G\) is an extensive property. In the light of the above statements choose the correct answer from the options given below

Which of the following statements are INCORRECT? A. All the transition metals except scandium form MO oxides which are ionic. B. The highest oxidation number corresponding to the group number in transition metal oxides is attained in \(Sc_2O_3\) to \(Mn_2O_7\). C. Basic character increases from \(V_2O_3\) to \(V_2O_4\) to \(V_2O_5\). D. \(V_2O_4\) dissolves in acids to give \(VO_4^{3-}\) salts. E. CrO is basic but \(Cr_2O_3\) is amphoteric. Choose the correct answer from the options given below

Pumice stone is an example of - gel solid sol foam sol

Match List I with List II: List I (Oxoacids of Sulphur) List II (Bonds) (A) Peroxodisulphuric acid (I) Two S-OH Four S=O One S-O-S (B) Sulphuric acid (II) Two S-OH One S=O (C) Pyrosulphuric acid (III) Two S-OH Four S=O One S-O-O-S (D) Sulphurous acid (IV) Two S-OH Two S=O Choose the correct answer from the options given below