1
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

25 mL of 0.1 N NaOH solution neutralises 12.5 mL of HCl solution. The amount of water needed to convert 500 mL of such HCl solution to 0.1 N is

A

555 mL

B

500 mL

C

50 mL

D

55.5 mL

2
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The maximum work that can be obtained from the following cells is

$$ X\left|X^{2+}(a q) \| Y^{+}(a q)\right| Y $$

Given, $E_{X^{2+} / X}^{\circ}=-1.7 \mathrm{~V}, E_{Y^{2+} / Y}^{\circ}=0.8 \mathrm{~V}$

A

$579 \mathrm{~kJ} / \mathrm{mol}$

B

$482.5 \mathrm{~kJ} / \mathrm{mol}$

C

$289.5 \mathrm{~kJ} / \mathrm{mol}$

D

$301.8 \mathrm{~kJ} / \mathrm{mol}$

3
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The specific rate constant of decomposition of a compound is given by $\ln k=5.0-\frac{12000}{T}$. The activation energy of decomposition for this compound at 300 K is

A

$24 \mathrm{kcal} \mathrm{mol}^{-1}$

B

$12 \mathrm{kcal} \mathrm{mol}^{-1}$

C

$24 \mathrm{cal} \mathrm{mol}^{-1}$

D

$12 \mathrm{cal} \mathrm{mol}^{-1}$

4
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is correct for chemisorption?

A

Chemisorption is reversible.

B

Multilayer adsorption takes place.

C

Adsorption increases with temperature.

D

The heat of adsorption is generally less than $40 \mathrm{~kJ} \mathrm{~mol}^{-1}$.

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