Day 169: JEE Mains Chemistry

5 questions. Try each one first, then open its answer.

Question 1
Some Basic Concepts of Chemistry. Asked once: 27 Jan 2024 (same type asked 3 times) See all 3 of this type
136 $The quantity which changes with temperature is:$
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Question 2
Some Basic Concepts of Chemistry. Asked once: 14 Jun 2022 (same type asked 3 times) See all 3 of this type
121 $120\text{ }g$
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Question 3
Amines. Asked once: 30 Jan 2024 (same type asked 3 times) See all 3 of this type
48 $(A)$
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Question 4
Chemical Thermodynamics. Asked once: 24 Jan 2025 (same type asked 3 times) See all 3 of this type
116 $\begin{matrix} & S(\text{ }g) +\frac{3}{2}O_{2}(\text{ }g) \rightarrow SO_{3}(\text{ }g) + 2x\text{~kcal~} \\ & SO_{2}(\text{ }g) +\frac{1}{2}O_{2}(\text{ }g) \rightarrow SO_{3}(\text{ }g) + ykcal \end{matrix}$
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Question 5

Electrochemistry. Asked once: 9 Apr 2024 (same type asked 3 times) See all 3 of this type

126

Zn \rightarrow Zn^{2 +}+ 2e^{-}

	List-I (Cell)		List-II (Use/Property/Reaction)
A.	Leclanche cell	I.	Converts energy of combustion into electrical energy
B.	Ni-Cd cell	II.	Does not involve any ion in solution and is used in hearing aids
C.	Fuel cell	III.	Rechargeable
D.	Mercury cell	IV.	Reaction at anode $Zn \rightarrow Zn^{2 +}+ 2e^{-}$

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