1
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which oxo-acid of sulphur contains $\mathrm{S}-\mathrm{O}-\mathrm{S}$ bond?

A

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_5$

B

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_4$

C

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_7$

D

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8$

2
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following reaction gives nitrogen (II) oxides as one of the products?

A

$\mathrm{Cu}+$ dil. $\mathrm{HNO}_3 \rightarrow$

B

$\mathrm{Cu}+$ conc. $\mathrm{HNO}_3 \rightarrow$

C

$\mathrm{Zn}+$ conc. $\mathrm{HNO}_3 \rightarrow$

D

$\mathrm{Zn}+$ conc. $\mathrm{HNO}_3 \rightarrow$

3
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct pairs in which the chemical substance given is correctly matched its use

Chemical substance Use
A.
<mrow data-mjx-texclass="ORD">

  <mi data-mjx-auto-op="false">Cl</mi>

</mrow>

<mn>2</mn>
<mrow data-mjx-texclass="ORD">

  <mi data-mjx-auto-op="false">Cl</mi>

</mrow>

<mn>2</mn>
Cl_(2)
Preparation of phosgene
B.
<mrow data-mjx-texclass="ORD">

  <mi mathvariant="normal">I</mi>

</mrow>

<mn>2</mn>
<mrow data-mjx-texclass="ORD">

  <mi mathvariant="normal">O</mi>

</mrow>

<mn>5</mn>
<mrow data-mjx-texclass="ORD">

  <mi mathvariant="normal">I</mi>

</mrow>

<mn>2</mn>
<mrow data-mjx-texclass="ORD">

  <mi mathvariant="normal">O</mi>

</mrow>

<mn>5</mn>
I_(2)O_(5)
Estimation of CO
C.
<mrow data-mjx-texclass="ORD">

  <mi mathvariant="normal">O</mi>

</mrow>

<mn>3</mn>
<mrow data-mjx-texclass="ORD">

  <mi mathvariant="normal">O</mi>

</mrow>

<mn>3</mn>
O_(3)
Disinfectant
A

A, B, C

B

A, B only

C

B, C only

D

A, C only

4
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Observe the following ions

$$ \mathrm{V}^{2+}, \mathrm{Zn}^{2+}, \mathrm{Cu}^{2+}, \mathrm{Fe}^{2+}, \mathrm{Fe}^{3+}, \mathrm{Ti}^{3+}, \mathrm{Sc}^{3+}, \mathrm{Ti}^{4+}, \mathrm{Ni}^{3+}, \mathrm{Co}^{3+}, \mathrm{Cu}^{+} $$

How many ions in the above list have zero magnetic moment?

A

4

B

3

C

5

D

2

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