1
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following mixing of 1 M base and 1 M acid leads to the largest increase in temperature?

A
50 mL HCl and 20 mL NaOH
B
30 mL HCl and 30 mL NaOH
C
$45 \mathrm{~mL} \mathrm{~CH}_3 \mathrm{COOH}$ and 25 mL NaOH
D
$30 \mathrm{~mL} \mathrm{~CH}_3 \mathrm{COOH}$ and 30 mL NaOH
2
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the given structure, number of sp and $\mathrm{sp}^2$ hybridized carbon atoms present respectively are :

JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Basics of Organic Chemistry Question 18 English

A
3 and 5
B
3 and 6
C
4 and 5
D
4 and 6
3
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The conditions and consequence that favours the $t_{2 \mathrm{~g}}{ }^3 \mathrm{e}_{\mathrm{g}}{ }^1$ configuration in a metal complex are :

A
strong field ligand, low spin complex
B
strong field ligand, high spin complex
C
weak field ligand, high spin complex
D
weak field ligand, low spin complex
4
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

For the reaction,

$$\mathrm{H}_2(\mathrm{~g})+\mathrm{I}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{~g})$$

Attainment of equilibrium is predicted correctly by :

A
JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Chemical Equilibrium Question 6 English Option 1
B
JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Chemical Equilibrium Question 6 English Option 2
C
JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Chemical Equilibrium Question 6 English Option 3
D
JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Chemical Equilibrium Question 6 English Option 4
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