1
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The equation which represents Freundlich adsorption isotherm is ( $x=$ amount of gas, $m=$ mass of solid)

A

$\log \frac{x}{m}=\log p+\frac{1}{n} \log k$

B

$\log \frac{x}{m}=\log k+\frac{1}{n} \log p$

C

$\frac{x}{m}=k+\frac{1}{n} \log p$

D

$\frac{x}{m}=\log p+\frac{1}{n} \log k$

2
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is used as froth stabilizer in froth floatation process?

A

Xanthate

B

Aniline

C

Pine oil

D

NaCN

3
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

White phosphorus on heating with concentrated NaOH solution in an inert atmosphere of $\mathrm{CO}_2$ gives a salt ' $X$ ' and gas ' $Y$ '. The oxidation state of central atom in $X$ and $Y$ is respectively

A

$-3,+1$

B

$+1,-3$

C

$0,-3$

D

$+1,+2$

4
AP EAPCET 2025 - 22nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For which of the following the $E^{\ominus}\left(M^{3+} / M^{2+}\right)$ is negative?

A

Mn

B

Co

C

Fe

D

Cr