List of top Questions asked in NEET (UG)

The structures of beryllium chloride in solid state and vapor phase, are
The maximum temperature that can be achieved in blast furnace is :

The incorrect statement among the following is

The slope of Arrhenius Plot (ln k v/s \(\frac{1}{T}\)) of first order reaction is −5×103 K. The value of Ea of the reaction is. Choose the correct option for your answer. [Given R=8.314 JK−1mol−1 ]

Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali

Tritium, a radioactive isotope of hydrogen, emits which of the following particles?

The intermediate compound ‘X’ in the following chemical reaction is

Match List - I with List - II.

List - I

List - II 

(a)(i)Hell-VolhardZelinsky reaction
(b)(ii)Gattermann-Koch reaction
(c)(iii)Haloform reaction 
(d)(iv)Esterification

Choose the correct answer from the options given below.

Match List - I with List - II.  

List - IList - II
(a) 2SO2 (g)+O2 (g) →2SO3(i) Acid rain 
(b)HOCl(g) h\(^\nu\)→OH+Cl(ii) Smog
(c)CaCO3+H2SO4→CaSO4+H2O+CO2(iii)Ozone
(d)NO2(g) \(^{h\nu}\)→NO(g)+O(g)(iv) Tropospheric

Choose the correct answer from the options given below.

The molar conductivity of 0.007 M acetic acid is 20 S cm2 mol−1. What is the dissociation constant of acetic acid? Choose the correct option. 

Choose the correct option for graphical representation of Boyle’s law, which shows a graph of pressure vs. volume of a gas at different temperatures
For a reaction A\(\rightarrow\)B, the enthalpy of the reaction is −4.2 kJ mol−1 and the enthalpy of activation is 9.6 kJ mol−1. The correct potential energy profile for the reaction is shown in option

Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them

Acid strength increases in the order given as $HF < < HCl < < HBr < < HI$. As the size of the elements $F, Cl, Br, I$ increases down the group, the bond strength of $HF, HCl, HBr$ and $HI$ decreases and so the acid strength increases. In the light of the above statements, choose the correct answer from the options given below.
Match List-I with List-II. Choose the correct answer from the options given below.

Which one of the following polymers is prepared by addition polymerization

Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?

Which of the following reactions is the metal displacement reaction? Choose the right option.

Which of the following molecules is non-polar in nature

What is the IUPAC name of the organic compound formed in the following chemical reaction? 

The correct option for the value of vapor pressure of a solution at 45\(^{\circ}\)C with benzene to octane in molar ratio 3 : 2 is : [At 45\(^{\circ}\)C vapor pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]

Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:
The structures of beryllium chloride in solid state and vapour phase, are :

The reagent ‘R’ in the given sequence of chemical reaction is

The following solutions were prepared by dissolving $10 g$ of glucose $\left( C _{6} H _{12} O _{6}\right)$ in $250 \,ml$ of water $\left( P _{1}\right)$ $10 \,g$ of urea $\left( CH _{4} N _{2} O \right)$ in $250 \,ml$ of water $\left( P _{2}\right)$ and $10 g$ of sucrose $\left( C _{12} H _{22} O _{11}\right)$ in $250\, ml$ of water $\left( P _{3}\right)$. The right option for the decreasing order of osmotic pressure of these solutions is: