1
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the following, the oxoacid with a peroxy bond is

A

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

B

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_6$

C

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

D

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

2
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Chlorine is allowed to react with excess of ammonia. In this, 1 mole of chlorine can oxidise ' $Z$ ' moles of $\mathrm{NH}_3$. ' $Z$ ' is

A

$3 / 8$

B

$8 / 3$

C

$2 / 3$

D

$3 / 2$

3
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The correct order of enthalpy of vaporisation of noble gases is

A

$\mathrm{Xe}>\mathrm{Kr}>\mathrm{Ar}>\mathrm{Ne}>\mathrm{He}$

B

$\mathrm{He}>\mathrm{Ne}>\mathrm{Kr}>\mathrm{Ar}>\mathrm{Xe}$

C

$\mathrm{Xe}>\mathrm{Ar}>\mathrm{He}>\mathrm{Ne}>\mathrm{Kr}$

D

$\mathrm{Ne}>\mathrm{Xe}>\mathrm{Kr}>\mathrm{He}>\mathrm{Ar}$

4
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Choose the correct statement.

$\mathrm{Fe}^{3+}$ ion is more stable than $\mathrm{Fe}^{2+}$ ion because

A

more the charge on the atom, more is its stability.

B

electronic configuration of $\mathrm{Fe}^{2+}$ is $3 d^6$ while that of $\mathrm{Fe}^{3+}$ is $3 d^5$.

C

$\mathrm{Fe}^{2+}$ has a larger size than that of $\mathrm{Fe}^{3+}$.

D

$\mathrm{Fe}^{3+}$ ions are coloured.

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