AP EAPCET 2024 - 22th May Morning Shift | AP EAPCET Year Wise Previous Years Questions

1

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

+1

-0

In which of the following Galvanic cells emf is maximum?

(Given, $E_{\mathrm{Mg}^{2+} \mid \mathrm{Mg}}^{\circ}=-2.36 \mathrm{~V}$

and $E_{\mathrm{Cl}_2 \mid 2 \mathrm{Cl}^{-}}^{\circ}=+136 \mathrm{~V}$ )

A

$\mathrm{Mg}\left|\mathrm{Mg}^{2+}(1 \mathrm{M})\right|\left|2 \mathrm{Cl}^{-}(1 \mathrm{M})\right| \mathrm{Cl}_2(1 \mathrm{~atm}), \mathrm{Pt}$

B

$\mathrm{Mg}\left|\mathrm{Mg}^{2+}(0.01 \mathrm{M})\right|\left|2 \mathrm{Cl}^{-}(1 \mathrm{M})\right| \mathrm{Cl}_2(1 \mathrm{~atm}), \mathrm{Pt}$

C

$\mathrm{Mg}\left|\mathrm{Mg}^{2+}(1 \mathrm{M})\right|\left|2 \mathrm{Cl}^{\prime}(0.01 \mathrm{M})\right| \mathrm{Cl}_2(1 \mathrm{~atm}), \mathrm{Pt}$

D

$\mathrm{Mg}^2\left|\mathrm{Mg}^{2+}(0.01 \mathrm{M}) \| 2 \mathrm{Cl}^{-}(0.01 \mathrm{M})\right| \mathrm{Cl}_2(1 \mathrm{~atm}), \mathrm{Pt}$

2

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

+1

-0

Isomerisation of gaseous cyclobutene to butadiene is first order reaction. At $T(\mathrm{~K})$. The rate constant of reaction is $33 \times 10^{-4} \mathrm{~s}^{-1}$. What is the time required (in min ) to complete $90 \%$ of this reaction at the temperature? $(\log 2=03)$

A

116.67

B

233.34

C

58.34

D

350.0

3

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

+1

-0

$$ \text { Match List-I with List-II } $$

List-I (Reaction)		List-II (Enzyme)
A.	Hydrolysis of starch to maltose	I	Diastase
B	Chalcogen	II	Pepsin
C	Hydrolysis of sucrose to glucose and fructose	III	Invertase
D	Glucose to ethanol	IV	Zymase

The correct answer is

A

A-III, B-II, C-I, D-IV

B

A-I, B-III, C-II, D-IV

C

A-IV, B-II, C-III, D-I

D

A-I, B-III, C-III, D-IV

4

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

+1

-0

The following data is obtained for coagulating a positively charged sol in 2 hours

Conc. of $\mathrm{Cl}^{-}$in $\mathrm{mol} \mathrm{L}^{-1}$	Result
$$ 5 \times 10^{-5} $$	Sol not precipitated
$$ 6 \times 10^{-5} $$	Sol not precipitated
$$ 7 \times 10^{-5} $$	Sol precipitated
$$ 8 \times 10^{-5} $$	Sol precipitated
$$ 1 \times 10^{-4} $$	Sol precipitated

What is the coagulating value of electrolyte for this sol?

A

$7 \times 10^{-5}$

B

$7 \times 10^{-2}$

C

$5 \times 10^{-2}$

D

$9 \times 10^{-2}$