1
AP EAPCET 2021 - 20th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$\mathrm{H}_3 \mathrm{BO}_3$$ or $$\mathrm{B}(\mathrm{OH})_3$$ is considered as an acid because its molecule

A
combines with proton from water molecule
B
accepts $$\mathrm{OH}^{-}$$ from water, releasing a proton
C
contains replaceable $$\mathrm{H}^{+}$$ ion
D
can donate proton easily
2
AP EAPCET 2021 - 20th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Xenon best reacts with

A
neutral atoms
B
most electronegative elements
C
most electropositive elements
D
transition elements
3
AP EAPCET 2021 - 20th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

The correct order of acidic character of the following is

A
$$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{Te}$$
B
$$\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}$$
C
$$\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{O}$$
D
$$\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{O}$$
4
AP EAPCET 2021 - 20th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the following reactions (i) and (ii), the number of moles of chlorine gas released respectively are

(i) $$\mathrm{MnO}_2+4 \mathrm{HCl} \longrightarrow$$

(ii) $$\mathrm{KMnO}_4+16 \mathrm{HCl} \longrightarrow$$

A
1 and 4
B
1 and 5
C
2 and 5
D
2 and 4

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