NTA JEE Main 26th June 2022 Shift 2 - Chemistry

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 34

Which one of the following is an example of disproportionation reaction?

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 48

Match List I with List II.

List-I (Enzyme)List-II (Conversion of)
A. InvertaseI. Starch into maltose
B. ZymaseII. Maltose into glucose
C. DiastaseIII. Glucose into ethanol
D. MaltaseIV. Cane sugar into glucose

Choose the most appropriate answer from the options given below

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 51

CNG is an important transportation fuel. When $$100$$ g CNG is mixed with $$208$$ g oxygen in vehicles, it leads to the formation of $$CO_2$$ and $$H_2O$$ and produces large quantity of heat during this combustion, then the amount of carbon dioxide, produced in grams is ______ [nearest integer] [Assume CNG to be methane]

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 54

A fish swimming in water body when taken out from the water body is covered with a film of water of weight $$36$$ g. When it is subjected to cooking at $$100°$$C, then the internal energy for vaporization in kJ mol$$^{-1}$$ is ______ [integer]
[Assume steam to be an ideal gas. Given $$\Delta_{vap}H^\circ$$ for water at $$373$$ K and $$1$$ bar is $$41.1$$ kJ mol$$^{-1}$$ : $$R = 8.31$$ J K$$^{-1}$$ mol$$^{-1}$$]

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 55

$$40\%$$ of HI undergoes decomposition to $$H_2$$ and $$I_2$$ at $$300$$ K. $$\Delta G^\circ$$ for this decomposition reaction at one atmosphere pressure is ______ J mol$$^{-1}$$ [nearest integer]
(Use $$R = 8.31$$ J K$$^{-1}$$ mol$$^{-1}$$; $$\log 2 = 0.3010$$, $$\ln 10 = 2.3$$, $$\log 3 = 0.477$$)

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 58

$$Cu(s) + Sn^{2+}(0.001M) \to Cu^{2+}(0.01M) + Sn(s)$$
The Gibbs free energy change for the above reaction at $$298$$ K is $$x \times 10^{-1}$$ kJ mol$$^{-1}$$. The value of $$x$$ is ______ [nearest integer]
[Given : $$E^\circ_{Cu^{2+}/Cu} = 0.34$$ V; $$E^\circ_{Sn^{2+}/Sn} = -0.14$$ V; $$F = 96500$$ C mol$$^{-1}$$]

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NTA JEE Main 26th June 2022 Shift 2 - Chemistry - Question 59

Catalyst A reduces the activation energy for a reaction by $$10$$ kJ mol$$^{-1}$$ at $$300$$ K. The ratio of rate constants, $$\frac{k_T \text{ Catalysed}}{k_T \text{ Uncatalysed}}$$ is $$e^x$$. The value of $$x$$ is ______ [nearest integer] [Assume that the pre-exponential factor is same in both the cases. Given $$R = 8.31$$ J K$$^{-1}$$ mol$$^{-1}$$]

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