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)

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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

$9 \times 10^{-2}$

2

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

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In which of the following metals extraction, impurities are removed as slag?

i. Al

ii. Fe

iii. Cu

iv. Zn

The correct option is

A

i, ii, iv only

B

i, ii only

C

ii, iii only

D

ii, iii, iv only

3

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

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Two of the products formed by the reaction of ' $X$ with HCl are gases. What is ' $X$ '?

A

$\mathrm{NaNO}_2$

B

$\mathrm{Na}_2 \mathrm{~S}$

C

$\mathrm{Ca}_3 \mathrm{P}_2$

D

$\mathrm{Na}_2 \mathrm{SO}_3$

4

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

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The correct order of oxidising power of the given ions is

A

$\mathrm{VO}_2^{+}<\mathrm{Cr}_2 \mathrm{O}_7^{2-}<\mathrm{MnO}_4^{-}$

B

$\mathrm{VO}_2^{+}<\mathrm{MnO}_4^{-}<\mathrm{Cr}_2 \mathrm{O}_7^{2-}$

C

$\mathrm{MnO}_4^{-}<\mathrm{Cr}_2 \mathrm{O}_7^{2-}<\mathrm{VO}_2^{+}$

D

$\mathrm{Cr}_2 \mathrm{O}_7^{2-}<\mathrm{VO}_2^{+}<\mathrm{MnO}_4^{-}$