1
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. $\mathrm{HNO}_3 \rightarrow$

2
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

3
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

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

Identify the correct set for $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ ion.

(Hybridisation of $\mathrm{Co}^{3+}$, type of complex, number of unpaired electrons in the complex ion respectively.)

A

$d^2 s p^3$, inner orbital complex, zero

B

$s p^3 d^2$, outer orbital complex, three

C

$d^2 s p^3$, inner orbital complex, two

D

$s p^3 d^2$, outer orbital complex, zero

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