AP EAPCET 2024 - 20th May Morning Shift | Chemical Kinetics Question 7 | Chemistry

For a first order reaction the concentration of reactant was reduced from $0.03 \mathrm{molL}^{-1}$ to $0.02 \mathrm{molL}^{-1}$ in 25 min . What is its rate (in $\mathrm{molL}^{-1} \mathrm{~s}^{-1}$ )?

$6.667 \times 10^{-6}$

$4 \times 10^{-4}$

$6.667 \times 10^{-4}$

$4 \times 10^{-6}$

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

-0

The first order reaction, $A(g) \rightarrow B(g)+2 C(g)$ occurs at $25^{\circ} \mathrm{C}$. After 24 minutes the ratio of the concentration of products to the concentration of the reactant is $1: 3$ What is the half life is of the reaction (in min )? $\log 1.11=0.046$

150.5

142.2

157.8

15.78

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

-0

Identify the autocatalytic reaction from the following

$\mathrm{N}_2(g)+3 \mathrm{H}_2(g) \xrightarrow[\mathrm{Mo}(\mathrm{s})]{\mathrm{Fe}(\mathrm{s})} 2 \mathrm{NH}_3(g)$

$2 \mathrm{KClO}_3(\mathrm{~s}) \xrightarrow{\mathrm{MnO}_2} 2 \mathrm{KCl}(\mathrm{s})+3 \mathrm{O}_2$

$\mathrm{CH}_3 \mathrm{COOC}_2 \mathrm{H}_5+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{CH}_3 \mathrm{COOH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$

$\mathrm{AgNO}_3(\mathrm{aq})+\mathrm{KCl}(\mathrm{aq}) \longrightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{KNO}_3(\mathrm{aq})$

AP EAPCET 2024 - 18th May Morning Shift

MCQ (Single Correct Answer)

-0

At 298 K , for a first order resction $(A \rightarrow P)$ the following graph is obtained. The rate constant ( in s ${ }^{-1}$ ) and initial concentration ( in mol $\mathrm{L}^{-1}$ ) of ' $A$ ' are respectively $(Y$-axis $=\ln (a-x): X$-axis $=$ time in sec)

AP EAPCET 2024 - 18th May Morning Shift Chemistry - Chemical Kinetics Question 8 English

$2.303,10^{-1}$

$10^{-2} ; 2303$

$10^{-1} ; 10^{-2}$

$10^{-2}: 10^{-1}$

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