NTA JEE Main 26th July 2022 Shift 1 - Chemistry

Given two statements below:
Statement I: In $$Cl_2$$ molecule the covalent radius is double of the atomic radius of chlorine.
Statement II: Radius of anionic species is always greater than their parent atomic radius.
Choose the most appropriate answer from options given below

Match List - I with List - II.

Choose the correct answer from the options given below

Which of the given reactions is not an example of disproportionation reaction?

Which of the following can be used to prevent the decomposition of $$H_2O_2$$?

Reaction of $$BeCl_2$$ with $$LiAlH_4$$ gives:
(A) $$AlCl_3$$
(B) $$BeH_2$$
(C) $$LiH$$
(D) $$LiCl$$
(E) $$BeAlH_4$$
Choose the correct answer from options given below

Borazine, also known as inorganic benzene, can be prepared by the reaction of 3-equivalents of "X" with 6-equivalents of "Y". "X" and "Y", respectively are

Which technique among the following, is most appropriate in separation of a mixture of $$100 \text{ mg}$$ of $$p$$-nitrophenol and picric acid?

Which of the following compounds is not aromatic?

The correct stability order of the following diazonium salts is

$$\dot{C}l + CH_4 \rightarrow A + B$$. $$A$$ and $$B$$ in the above atmospheric reaction step are

The major product formed in the given reaction is: 

Match List - I with List - II.

Choose the correct answer from the options given below

Refining using liquation method is the most suitable for metals with

The dark purple colour of $$KMnO_4$$ disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Experimental reaction of $$CH_3Cl$$ with aniline and anhydrous $$AlCl_3$$ does not give $$o$$ and $$p$$-methylaniline.
Reason (R): The $$-NH_2$$ group of aniline becomes deactivating because of salt formation with anhydrous $$AlCl_3$$ and hence yields $$m$$-methyl aniline as the product.
In the light of the above statements, choose the most appropriate answer from the options given below

The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to

The products formed in the following reaction, A and B are

Which reactant will give the following alcohol on reaction with one mole of phenyl magnesium bromide (PhMgBr) followed by acidic hydrolysis?

Stearic acid and polyethylene glycol react to form which one of the following soap/detergents?

Which of the following is a reducing sugar?

Chlorophyll extracted from the crushed green leaves was dissolved in water to make $$2 \text{ L}$$ solution of Mg of concentration $$48 \text{ ppm}$$. The number of atoms of Mg in this solution is $$x \times 10^{20}$$ atoms. The value of $$x$$ is ______ (Nearest Integer) (Given: Atomic mass of Mg is $$24 \text{ g mol}^{-1}$$, $$N_A = 6.02 \times 10^{23} \text{ mol}^{-1}$$)

When $$800 \text{ mL}$$ of $$0.5M$$ nitric acid is heated in a beaker, its volume is reduced to half and $$11.5 \text{ g}$$ of nitric acid is evaporated. The molarity of the remaining nitric acid solution is $$x \times 10^{-2} \text{ M}$$. (Molar mass of nitric acid is $$63 \text{ g mol}^{-1}$$)

The wavelength of an electron and a neutron will become equal when the velocity of the electron is $$x$$ times the velocity of neutron. The value of $$x$$ is ______ (the nearest integer) (Mass of electron is $$9.1 \times 10^{-31} \text{ kg}$$ and mass of neutron is $$1.6 \times 10^{-27} \text{ kg}$$)

A mixture of hydrogen and oxygen contains $$40\%$$ hydrogen by mass when the pressure is $$2.2 \text{ bar}$$. The partial pressure of hydrogen is ______ bar.

$$2.4 \text{ g}$$ coal is burnt in a bomb calorimeter in excess of oxygen at $$298 \text{ K}$$ and $$1 \text{ atm}$$ pressure. The temperature of the calorimeter rises from $$298 \text{ K}$$ to $$300 \text{ K}$$. The enthalpy change during the combustion of coal is $$-x \text{ kJ mol}^{-1}$$. The value of $$x$$ is ______ (Given: Heat capacity of bomb calorimeter $$20.0 \text{ kJ K}^{-1}$$. Assume coal to be pure carbon)

At $$298 \text{ K}$$, the equilibrium constant is $$2 \times 10^{15}$$ for the reaction:
$$Cu(s) + 2Ag^+(aq) \rightleftharpoons Cu^{2+}(aq) + 2Ag(s)$$
The equilibrium constant for the reaction
$$\dfrac{1}{2}Cu^{2+}(aq) + Ag(s) \rightleftharpoons \dfrac{1}{2}Cu(s) + Ag^+(aq)$$
is $$x \times 10^{-8}$$. The value of $$x$$ is ______.

In the presence of sunlight, benzene reacts with $$Cl_2$$ to give product X. The number of hydrogens in X is ______.

The amount of charge in F (Faraday) required to obtain one mole of iron from $$Fe_3O_4$$ is ______. (Round off to the nearest integer)

For a reaction $$A \rightarrow 2B + C$$, the half lives are $$100 \text{ s}$$ and $$50 \text{ s}$$ when the concentration of reactant A is $$0.5$$ and $$1.0 \text{ mol L =}$$ respectively. The order of the reaction is ______.

The difference between spin only magnetic moment values of $$[Co(H_2O)_6]Cl_2$$ and $$[Cr(H_2O)_6]Cl_3$$ is ______.