1
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Observe the following reaction

I. $\mathrm{CO}(\mathrm{g})+\mathrm{H}_2(\mathrm{~g}) \xrightarrow{X} \mathrm{HCHO}(\mathrm{g})$

II. $\mathrm{CO}(\mathrm{g})+3 \mathrm{H}_2(\mathrm{~g}) \xrightarrow{\gamma} \mathrm{CH}_4(\mathrm{~g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g})$

The catalysts $X$ and $Y$ in the above reactions are respectively

A

$\mathrm{Cu}, \mathrm{Cu}$

B

$\mathrm{Ni}, \mathrm{Ni}$

C

$\mathrm{Cu}, \mathrm{Ni}$

D

$\mathrm{Ni}, \mathrm{Cu}$

2
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Composition of siderite ore is

A

$\mathrm{FeCO}_3$

B

$\mathrm{ZnCO}_3$

C

$\mathrm{CuCO}_3 \cdot \mathrm{Cu}(\mathrm{OH})_2$

D

$\mathrm{CuFeS}_2$

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

Which of the following gives more number of oxides on reacting with HCl ?

A

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

B

$\mathrm{NaNO}_2$

C

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

D

$\mathrm{NaHCO}_3$

4
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The number of lone pairs of electrons on the central atom of $\mathrm{XeO}_3, \mathrm{XeOF}_4$ and $\mathrm{XeF}_6$ respectively is

A

1, 1, 1

B

$3,2,1$

C

2, 1, 0

D

$1,2,1$

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