Chemical Kinetics is an important topic in the Chemistry section in TS EAMCET exam. Practising this topic will increase your score overall and make your conceptual grip on TS EAMCET exam stronger.
This article gives you a full set of TS EAMCET PYQs for Chemical Kinetics with explanations for effective preparation. Practice of TS EAMCET Chemistry PYQs including Chemical Kinetics questions regularly will improve accuracy, speed, and confidence in the TS EAMCET 2026 exam.
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TS EAMCET PYQs for Chemical Kinetics with Solutions
1.
Match the following industrial processes with the catalysts used:
- Ostwald's process – \( \text{CuCl}_2 \)
- Haber's process – Zeolites
- Deacon's process – Pt gauge
Cracking of hydrocarbons – Fe
2.
A $\rightarrow$ P is a first-order reaction. The change in concentration of A with time is shown below. The instantaneous rate at points X, Y and Z is \( R_X \), \( R_Y \), and \( R_Z \), respectively. What is the correct order of \( R_X \), \( R_Y \), and \( R_Z \)?- \( R_Y>R_X>R_Z \)
- \( R_Y>R_Z>R_X \)
- \( R_X>R_Y>R_Z \)
- \( R_Z>R_X>R_Y \)
3.
Consider the gaseous reaction: \[ \text{A}_2 + \text{B}_2 \;\longrightarrow\; 2\,\text{AB} \] The following initial-rate data were obtained for the above reaction (rate of formation of AB): \includegraphics[]{144.png} The value of the rate constant for the above reaction is:- \(1.25\times 10^{-2}\)
- \(1.25\times 10^{-3}\)
- \(2.5\times 10^{-2}\)
- \(2.5\times 10^{-3}\)
4.
The rate law for the decomposition of hydrogen iodide is - = d[HI]/dt = k[HI]2. The units of rate constant k are:
L mol-1 s-1
L-1 mol s-1
L2 mol-2 s-1
L1/2 mol1/2 s-1
5.
In Haber’s process of manufacture of ammonia, the ‘catalyst’, the ‘promoter’, and‘ poison for the catalyst’ are respectively:
- \( Fe, W, CO \)
- \( Co, Mo, CO \)
- \( Fe, Mo, CO_2 \)
\( Fe, Mo, CO \)
6.
Among the following, the calcination process is:
(1) 2Cu2S + 3O2 →Δ 2Cu2O + 2SO2 ↑
(2) Al2O3(s) + 2NaOH(aq) + 3H2O(l) → 2Na[Al(OH)4](aq)
(3) 2CuFeS2 + O2 → Cu2S + 2FeS + SO2
(4) Fe2O3 · xH2O(s) →Δ Fe2O3(s) + xH2O(g)
7.
The rate of a reaction doubles when the temperature is raised by 10°C. Which of the following options represents the value of activation energy \( E_a \) for this reaction?- 30 kJ/mol
- 60 kJ/mol
- 120 kJ/mol
- 100 kJ/mol
8.
Match the following:
- A-III, B-I, C-IV, D-II
- A-II, B-III, C-I, D-I
- A-III, B-II, C-I, D-IV
- A-II, B-III, C-I, D-IV
9.
For a first order decomposition of a certain reaction, rate constant is given by the equation
\(\log k(s⁻¹) = 7.14 - \frac{1 \times 10^4 K}{T}\). The activation energy of the reaction (in kJ mol⁻¹) is (\(R = 8.3 J K⁻¹ mol⁻¹\))
Note: The provided value for R is 8.3. We will use the more precise value R=8.314 J K⁻¹ mol⁻¹ for accuracy, as is standard.- 161.1
- 171.1
- 181.1
- 191.1
10.
Which of the following will have a spin-only magnetic moment of 2.86 BM?- \(\text{[CoF}_6]^{3-}\)
- \(\text{[Co(NH}_3)_6]^{3+}\)
- \(\text{[NiCl}_4]^{2-}\)
- \(\text{[Ni(CN)}_4]^{2-}\)
11.
The decomposition of benzene diazonium chloride is a first-order reaction. The time taken for its decomposition to \( \frac{1}{4} \) and \( \frac{1}{10} \) of its initial concentration are \( t_{1/4} \) and \( t_{1/10} \) respectively. The value of \( \frac{t_{1/4}}{t_{1/10}} \times 100 \) is: (Given: log 2 = 0.3)- 60
- 30
- 90
45
12.
A $\to$ P, is a zero-order reaction. At 300 K, this reaction was started with [A]=0.5 mol L$^{-1}$. After 100 s, the concentration of A was 0.05 mol L$^{-1}$. What is the rate constant (in mol L$^{-1}$s$^{-1}$) of this reaction?- $2.303\times10^{-2}$
- $2.303\times10^{-3}$
- $4.5\times10^{-2}$
- $4.5\times10^{-3}$
13.
For a first-order reaction, the graph between \( \log \frac{a}{(a - x)} \) (on y-axis) and time (in min, on x-axis) gave a straight line passing through the origin. The slope is \( 2 \times 10^{-3} \) min\(^{-1}\). What is the rate constant (in min\(^{-1}\))?
- \( 2 \times 10^{-3} \)
- \( \frac{2 \times 10^{-3}}{2.303} \)
- \( 4.606 \times 10^{-3} \)
\( 0.5 \times 10^{-5} \)
14.
For a first-order reaction, a plot of \( \ln k \) (y-axis) and \( \frac{1}{T} \) (x-axis) gave a straight line with a slope equal to \( -10^4 \) and an intercept equal to 2.303 (on the y-axis). What is the activation energy \( E_a \) (in kJ/mol) of the reaction? (Given \( R = 8.314 \, \text{J mol}^{-1} \text{K}^{-1} \))- 8.314 kJ/mol
- 2.303 kJ/mol
- 2303 kJ/mol
- 83.14 kJ/mol
15.
First order reaction (A→P) with slopes mA, mB, mC at points A, B, C. Identify correct order.
- mA = mB = mC
- mA>mB>mC
- mC>mB>mA
- mB>mC>mA
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