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

1

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

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Which of the following solutions is used in the styptic action which prevents bleeding of blood?

A

$\mathrm{CoCl}_2$ solution

B

$\mathrm{FeCl}_3$ solution

C

Gold sol

D

AgBr emulsion

2

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

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' $A$ ' is a protecting colloid. The following data is obtained for preventing the coagulation of 10 mL of gold sol to which 1 mL of $10 \% \mathrm{NaCl}$ is added. What is the gold number of ' $A$ '?

Expt. No.	Wt (in mg ) of $\boldsymbol{A}$ added to gold sol	$$ \text { Coagulation } $$
1	40	Prevented
2	35	Prevented
3	25	Not prevented
4	32	Not prevented
5	33	Prevented

A

32

B

33

C

35

D

40

3

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

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Two statements are given below.

Statement I : The reaction $\mathrm{Cr}_2 \mathrm{O}_3+2 \mathrm{Al} \longrightarrow \mathrm{Al}_2 \mathrm{O}_3+2 \mathrm{Cr}$ $\left(\Delta G^{\ominus}=-421 \mathrm{~kJ}\right)$ is thermodynamically feasible.

Statement II : The above reaction occurs at room temperature.

The correct answer is

A

Both Statement I and Statement II are correct.

B

Both Statements I and II are not correct.

C

Statement I is correct but Statement II is not correct.

D

Statement I is not correct but Statement II is correct.

4

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

+1

-0

The basicity of $\mathrm{H}_3 \mathrm{PO}_2, \mathrm{H}_3 \mathrm{PO}_3 \cdot \mathrm{H}_3 \mathrm{PO}_4$ respectively is

A

$2,2,3$

B

$2,3,3$

C

$1,3,3$

D

$1,2,3$