1
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a first order decomposition of a certain reaction, rate constant is given by the equation. $\log k\left(s^{-1}\right)=7.14-\frac{1 \times 10^4 \mathrm{~K}}{T}$. The activation energy of the reaction ( in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) is

$$ \left(R=8.3 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\right) $$

A

161.1

B

171.1

C

181.1

D

191.1

2
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The source of an enzyme is malt and that enzyme converts $X$ into $Y . X$ and $Y$ respectively are

A

starch, maltose

B

maltose, glucose

C

proteins, peptides

D

glucose, fructose

3
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the extraction of iron using blast furnace to remove the impurity $(X)$, chemical $(Y)$ is added to the ore. $X$ and $Y$ are respectively

A

$\mathrm{SiO}_2, \mathrm{MgCO}_3$

B

$\mathrm{FeO}, \mathrm{SiO}_2$

C

$\mathrm{SiO}_2, \mathrm{CaCO}_3$

D

$\mathrm{SiO}_2, \mathrm{FeCO}_3$

4
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Thionyl chloride on reaction with white phosphorus gives a compound of phosphorus ' $C$ ' which on hydrolysis gives an oxo acid ' $O$ '. The correct statement about $C$ and $O$ are

I. Shape of ' $C$ ' is pyramidal

II. ' $O$ ' is a dibasic acid

III. ' $O$ ' is a monobasic acid

IV. ' $C$ ' on reaction with acetic acid given ' $O$ '

A

I and II only

B

II and IV only

C

I, III and IV only

D

I, II and IV only

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