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Solution
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Q.3 Correct
Q.3 In-correct
Q.3 Unattempt

Match List - I with List - II

List - I List - II
(A) Bronze (I) Cu, Ni
(B) Brass (II) Fe, Cr, Ni, C
(C) UK silver coin (III) Cu, Zn
(D) Stainless steel (IV) Cu, Sn

Choose the correct answer from the options given below :

सूची - I को सूची - II से मिलाएँ

सूची - I सूची - II
(A) ब्रॉन्ज (I) Cu, Ni
(B) ब्रास (II) Fe, Cr, Ni, C
(C) यू.के. सिल्वर कॉइन (III) Cu, Zn
(D) स्टेनलेस स्टील (IV) Cu, Sn

नीचे दिए गए विकल्पों में से सही उत्तर चुनें :

Q.8 Correct
Q.8 In-correct
Q.8 Unattempt

The effect of temperature on spontaneity of reactions are represented as :

$\Delta$H $\Delta$S Temperature Spontaneity
(A) $+$ $-$ any T Non spontaneous
(B) $+$ $+$ low T spontaneous
(C) $-$ $-$ low T Non spontaneous
(D) $-$ $+$ any T spontaneous

The incorrect combinations are :

प्रतिक्रियाओं की स्वाभाविकता पर तापमान का प्रभाव इस प्रकार प्रदर्शित किया गया है :

$\Delta$H $\Delta$S Temperature Spontaneity
(A) $+$ $-$ any T अस्वाभाविक
(B) $+$ $+$ low T स्वाभाविक
(C) $-$ $-$ low T अस्वाभाविक
(D) $-$ $+$ any T स्वाभाविक

गलत संयोजन हैं :

Q.9 Correct
Q.9 In-correct
Q.9 Unattempt

Match List - I with List - II

List - I
(Isomers of $\mathrm{C}_{10} \mathrm{H}_{14}$ )
List - II
(Ozonolysis product)
(A) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 1 (I) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 2
(B) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 3 (II) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 4
(C) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 5 (III) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 6
(D) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 7 (IV) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 English 8

Choose the correct answer from the options given below :

सूची - I से सूची - II का मिलान करें

सूची - I
($\mathrm{C}_{10} \mathrm{H}_{14}$ के समावयव )
सूची - II
(ओज़ोनोलिसिस उत्पाद)
(A) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 1 (I) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 2
(B) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 3 (II) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 4
(C) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 5 (III) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 6
(D) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 7 (IV) JEE Main 2025 (Online) 23rd January Evening Shift Chemistry - Hydrocarbons Question 2 Hindi 8

नीचे दिए गए विकल्पों में से सही उत्तर चुनें :

Q.22 Correct
Q.22 In-correct
Q.22 Unattempt

The bond dissociation enthalpy of $\mathrm{X}_2 \Delta \mathrm{H}_{\text {bond }}^{\circ}$ calculated from the given data is ___________ $\mathrm{kJ} \mathrm{mol}^{-1}$. (Nearest integer)

$$\begin{aligned} & \mathrm{M}^{+} \mathrm{X}^{-}(\mathrm{s}) \rightarrow \mathrm{M}^{+}(\mathrm{g})+\mathrm{X}^{-}(\mathrm{g}) \Delta \mathrm{H}_{\text {lattice }}^{\circ}=800 \mathrm{~kJ} \mathrm{~mol}^{-1} \\ & \mathrm{M}(\mathrm{~s}) \rightarrow \mathrm{M}(\mathrm{~g}) \Delta \mathrm{H}_{\text {sub }}^{\circ}=100 \mathrm{~kJ} \mathrm{~mol}^{-1} \end{aligned}$$

$$\mathrm{M}(\mathrm{~g}) \rightarrow \mathrm{M}^{+}(\mathrm{g})+\mathrm{e}^{-}(\mathrm{g}) \Delta \mathrm{H}_{\mathrm{i}}^{\circ}=500 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$\mathrm{X}(\mathrm{~g})+\mathrm{e}^{-}(\mathrm{g}) \rightarrow \mathrm{X}^{-}(\mathrm{g}) \Delta \mathrm{H}_{\mathrm{eg}}^{\circ}=-300 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$\mathrm{M}(\mathrm{~s})+\frac{1}{2} \mathrm{X}_2(\mathrm{~g}) \rightarrow \mathrm{M}^{+} \mathrm{X}^{-}(\mathrm{s}) \Delta \mathrm{H}_f^{\circ}=-400 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

[Given : $\mathrm{M}^{+} \mathrm{X}^{-}$is a pure ionic compound and X forms a diatomic molecule $\mathrm{X}_2$ in gaseous state]

दी गई जानकारी से $\mathrm{X}_2 \Delta \mathrm{H}_{\text {bond }}^{\circ}$ की बंध विच्छेद एन्थैल्पी _________ $\mathrm{kJ} \mathrm{mol}^{-1}$ (निकटतम पूर्णांक) है।

$$\begin{aligned} & \mathrm{M}^{+} \mathrm{X}^{-}(\mathrm{s}) \rightarrow \mathrm{M}^{+}(\mathrm{g})+\mathrm{X}^{-}(\mathrm{g}) \Delta \mathrm{H}_{\text {lattice }}^{\circ}=800 \mathrm{~kJ} \mathrm{~mol}^{-1} \\ & \mathrm{M}(\mathrm{~s}) \rightarrow \mathrm{M}(\mathrm{~g}) \Delta \mathrm{H}_{\text {sub }}^{\circ}=100 \mathrm{~kJ} \mathrm{~mol}^{-1} \end{aligned}$$

$$\mathrm{M}(\mathrm{~g}) \rightarrow \mathrm{M}^{+}(\mathrm{g})+\mathrm{e}^{-}(\mathrm{g}) \Delta \mathrm{H}_{\mathrm{i}}^{\circ}=500 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$\mathrm{X}(\mathrm{~g})+\mathrm{e}^{-}(\mathrm{g}) \rightarrow \mathrm{X}^{-}(\mathrm{g}) \Delta \mathrm{H}_{\mathrm{eg}}^{\circ}=-300 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

$$\mathrm{M}(\mathrm{~s})+\frac{1}{2} \mathrm{X}_2(\mathrm{~g}) \rightarrow \mathrm{M}^{+} \mathrm{X}^{-}(\mathrm{s}) \Delta \mathrm{H}_f^{\circ}=-400 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

[दिया गया: $\mathrm{M}^{+} \mathrm{X}^{-}$ एक शुद्ध आयनिक यौगिक है और X गैसीय अवस्था में एक द्विपरमाणुक अणु $\mathrm{X}_2$ का निर्माण करता है]

Q.17 Correct
Q.17 In-correct
Q.17 Unattempt

Match List - I with List - II

List - I List - II
(A) Permeability of free space (I) $\left[\mathrm{M} \mathrm{L}^2 \mathrm{~T}^{-2}\right]$
(B) Magnetic field (II) $\left[\mathrm{M} \mathrm{T}^{-2} \mathrm{~A}^{-1}\right]$
(C) Magnetic moment (III) $\left[\mathrm{M} \mathrm{L} \mathrm{T}^{-2} \mathrm{~A}^{-2}\right]$
(D) Torsional constant (IV) $\left[\mathrm{L}^2 \mathrm{~A}\right]$

Choose the correct answer from the options given below :

सूची-I को सूची-II से मिलाएं

सूची - I सूची - II
(A) मुक्त स्थान की पारगम्यता (I) $\left[\mathrm{M} \mathrm{L}^2 \mathrm{~T}^{-2}\right]$
(B) चुंबकीय क्षेत्र (II) $\left[\mathrm{M} \mathrm{T}^{-2} \mathrm{~A}^{-1}\right]$
(C) चुंबकीय मोमेंट (III) $\left[\mathrm{M} \mathrm{L} \mathrm{T}^{-2} \mathrm{~A}^{-2}\right]$
(D) मरोड़ स्थिरांक (IV) $\left[\mathrm{L}^2 \mathrm{~A}\right]$

नीचे दिए गए विकल्पों में से सही उत्तर चुनें:

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