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

The ratio of lone pair of electrons to bond pair of electrons in ozone molecule is

A

$2: 1$

B

$3: 2$

C

$2: 3$

D

$1: 2$

2
TS EAMCET 2023 (Online) 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Consider the following statements about the oxides of halogens.

A. At room temperature, $\mathrm{OF}_2$ is thermally stable.

B. Order of stability of oxides of halogens is

$$ \mathrm{I}>\mathrm{Br}>\mathrm{Cl} . $$

C. $\mathrm{I}_2 \mathrm{O}_5$ is used in the estimation of CO .

D. $\mathrm{ClO}_2$ is used as a bleaching agent.

The correct statements are,

A

A and B only

B

A, B and C only

C

B and C only

D

A, C and D only

3
TS EAMCET 2023 (Online) 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \begin{aligned} \mathrm{XeF}_4+\mathrm{O}_2 \mathrm{~F}_2 & \longrightarrow X+\mathrm{O}_2 \\ X+\underset{(1 \text { mole })}{\mathrm{H}_2 \mathrm{O}} & \longrightarrow Y+2 \mathrm{HF} \end{aligned} $$

The shapes of molecules of $X$ and $Y$ respectively are

A

square planar, square pyramidal

B

distorted octahedral, square pyramidal

C

distorted tetrahedral, distorted octahedral

D

square pyramidal, tetrahedral

4
TS EAMCET 2023 (Online) 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Among the following the incorrect statement about transition metals is

A

$\mathrm{Cr}, \mathrm{Mo}$ and W have high melting points.

B

With increase in number of unpaired. electrons melting point increases.

C

$\mathrm{Mn}^{3+}$ is more stable than $\mathrm{Mn}^{2+}$.

D

They show variable oxidation states.

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