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1
TS EAMCET 2023 (Online) 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The oxidation states of three carbon atoms in carbon suboxide $\left(\mathrm{C}_3 \mathrm{O}_2\right)$ respectively are

A

$+2,0,+2$

B

$+2,0,+4$

C

$+4,+2,+2$

D

$-2,+2,0$

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 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is the strongest reducing agent?

A

$\mathrm{TeO}_3$

B

$\mathrm{SO}_3$

C

$\mathrm{TeO}_2$

D

$\mathrm{SO}_2$

4
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is only a redox reaction but not a disproportionation reaction?

A
$4 \mathrm{H}_3 \mathrm{PO}_3 \longrightarrow 3 \mathrm{H}_3 \mathrm{PO}_4+\mathrm{PH}_3$
B
$2 \mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2$
C
$\mathrm{P}_4+3 \mathrm{NaOH}+3 \mathrm{H}_2 \mathrm{O} \longrightarrow 3 \mathrm{NaH}_2 \mathrm{PO}_2+\mathrm{PH}_3$
D
$\mathrm{P}_4+8 \mathrm{SOCl}_2 \longrightarrow 4 \mathrm{PCl}_3+2 \mathrm{~S}_2 \mathrm{Cl}_2+4 \mathrm{SO}_2$
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