NTA JEE Main 25th July 2022 Shift 1 - Chemistry

$$SO_2Cl_2$$ on reaction with excess of water results into acidic mixture
$$SO_2Cl_2 + 2H_2O \rightarrow H_2SO_4 + 2HCl$$
16 moles of $$NaOH$$ is required for the complete neutralisation of the resultant acidic mixture. The number of moles of $$SO_2Cl_2$$ used is

Which of the following sets of quantum numbers is not allowed?

The IUPAC nomenclature of an element with electronic configuration $$[Rn] 5f^{14} 6d^1 7s^2$$ is

$$20 \text{ mL}$$ of $$0.1 \text{ M } NH_4OH$$ is mixed with $$40 \text{ mL}$$ of $$0.05 \text{ M HCl}$$. The pH of the mixture is nearest to:
(Given: $$K_b(NH_4OH) = 1 \times 10^{-5}$$, $$\log 2 = 0.30$$, $$\log 3 = 0.48$$, $$\log 5 = 0.69$$, $$\log 7 = 0.84$$, $$\log 11 = 1.04$$)

The reaction of $$H_2O_2$$ with potassium permanganate in acidic medium leads to the formation of mainly

Choose the correct order of density of the alkali metals

Match List - I with List - II

Choose the correct answer from the options given below

The geometry around boron in the product 'B' formed from the following reaction is
$$BF_3 + NaH \xrightarrow{450K} A + NaF$$
$$A + NMe_3 \rightarrow B$$

A compound 'A' on reaction with 'X' and 'Y' produces the same major product but different by-products 'a' and 'b'. Oxidation of 'a' gives a substance produced by ants.

'X' and 'Y' respectively are

The photochemical smog does not generally contain

The depression in freezing point observed for a formic acid solution of concentration $$0.5 \text{ mL L}^{-1}$$ is $$0.0405°C$$. Density of formic acid is $$1.05 \text{ g mL}^{-1}$$. The Van't Hoff factor of the formic acid solution is nearly: (Given for water $$K_f = 1.86 \text{ K kg mol}^{-1}$$)

The compound(s) that is(are) removed as slag during the extraction of copper is:
(1) CaO
(2) FeO
(3) Al₂O₃
(4) ZnO
(5) NiO
Choose the correct answer from the options given below

The interhalogen compound formed from the reaction of bromine with excess of fluorine is a

Most stable product of the following reaction is

Given below are two statements:
Statement I: On heating with $$KHSO_4$$, glycerol is dehydrated and acrolein is formed.
Statement II: Acrolein has fruity odour and can be used to test glycerol's presence.
Choose the correct option.

Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?

An organic compound 'A' on reaction with $$NH_3$$ followed by heating gives compound B. Which on further strong heating gives compound C ($$C_8H_5NO_2$$). Compound C on sequential reaction with ethanolic KOH, alkyl chloride and hydrolysis with alkali gives a primary amine. The compound A is

Melamine polymer is formed by the condensation of

Drugs used to bind to receptors, inhibiting its natural function and blocking a message are called

During the denaturation of proteins, which of these structures will remain intact?

Among the following species $$N_2, N_2^+, N_2^-, N_2^{2-}, O_2, O_2^+, O_2^-, O_2^{2-}$$, the number of species showing diamagnetism is ______.

The pressure of a moist gas at $$27°C$$ is $$4 \text{ atm}$$. The volume of the container is doubled at the same temperature. The new pressure of the moist gas is ______ $$\times 10^{-1}$$ atm. (Nearest integer)
(Given: The vapour pressure of water at $$27°C$$ is $$0.4 \text{ atm}$$)

The enthalpy of combustion of propane, graphite and dihydrogen at $$298 \text{ K}$$ are: $$-2220.0 \text{ kJ mol}^{-1}$$, $$-393.5 \text{ kJ mol}^{-1}$$ and $$-285.8 \text{ kJ mol}^{-1}$$ respectively. The magnitude of enthalpy of formation of propane ($$C_3H_8$$) is ______ $$\text{kJ mol}^{-1}$$. (Nearest integer)

While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from $$0.25 \text{ g}$$ of the compound neutralized $$2.5 \text{ mL}$$ of $$2M \text{ } H_2SO_4$$. The percentage of nitrogen present in organic compound is ______.

The number of $$sp^3$$ hybridised carbons in an acyclic neutral compound with molecular formula $$C_4H_5N$$ is ______.

The cell potential for $$Zn | Zn^{2+}(aq) || Sn^{x+} | Sn$$ is $$0.801 \text{ V}$$ at $$298 \text{ K}$$. The reaction quotient for the above reaction is $$10^{-2}$$. The number of electrons involved in the given electrochemical cell reaction is ______.
(Given $$E^0_{Zn^{2+}|Zn} = -0.763 \text{ V}$$, $$E^0_{Sn^{x+}|Sn} = +0.008 \text{ V}$$ and $$\dfrac{2.303RT}{F} = 0.06 \text{ V}$$)

The half life for the decomposition of gaseous compound A is $$240 \text{ s}$$ when the gaseous pressure was $$500 \text{ Torr}$$ initially. When the pressure was $$250 \text{ Torr}$$, the half life was found to be $$4.0 \text{ min}$$. The order of the reaction is ______ (Nearest integer).

Among $$Co^{3+}$$, $$Ti^{2+}$$, $$V^{2+}$$ and $$Cr^{2+}$$ ions, one if used as a reagent cannot liberate $$H_2$$ from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is ______ B.M. (Nearest integer)

Consider the following metal complexes:
$$[Co(NH_3)]^{3+}$$
$$[CoCl(NH_3)_5]^{2+}$$
$$[Co(CN)_6]^{3-}$$
$$[Co(NH_3)_5(H_2O)]^{3+}$$
The spin-only magnetic moment value of the complex that absorbs light with shortest wavelength is ______ B.M. (Nearest integer)

In the given reaction

(Where Et is $$-C_2H_5$$)
The number of chiral carbon(s) in product A is ______.