1
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

$\mathrm{Al}+$ aq. NaOH (excess) $\longrightarrow P+Q \cdot P$ and $Q$ are

A

$\mathrm{Al}(\mathrm{OH})_3: \mathrm{H}_2 \mathrm{O}$

B

$\mathrm{Al}(\mathrm{OH})_3: \mathrm{Na}_2 \mathrm{O}_2$

C

$\mathrm{Na}^{+}\left[\mathrm{Al}(\mathrm{OH})_4\right]: \mathrm{H}_2$

D

$\mathrm{Al}(\mathrm{OH})_3: \mathrm{Na}_2 \mathrm{O}$

2
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Among the following elements, $X$ exhibits maximum catenation and $Y$ is the least abundant on earth. $X$ and $Y$ elements are

A

$\mathrm{C} . \mathrm{Ge}$

B

$\mathrm{Si}, \mathrm{Ge}$

C

$\mathrm{C} \cdot \mathrm{Pb}$

D

$\mathrm{Ge}, \mathrm{C}$

3
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The oxoacid of phosphorus which contains $4 \mathrm{P}-\mathrm{O}-\mathrm{H}, 2 \mathrm{P}=\mathrm{O}$ and one $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bond is

A

orthophosphoric acid

B

metaphosphoric acid

C

pyrophosphoric acid

D

hypophosphoric acid

4
TS EAMCET 2022 (Online) 19th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Group 16 elements are also called

A

pnicogens

B

picogens

C

halogens

D

chalocogens

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