1
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Hard water contains ion of

A

zinc

B

magnesium and calcium

C

iron

D

iron and manganese

2
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Predict the feasibility of the given reactions in aqueous solution

(i) $\mathrm{Be}(\mathrm{OH})_2+2 \mathrm{OH}^{-} \longrightarrow\left[\mathrm{Be}(\mathrm{OH})_4\right]^{2-}$

(ii) $\mathrm{Be}(\mathrm{OH})_2+2 \mathrm{H}^{+} \longrightarrow\left[\mathrm{Be}(\mathrm{OH})_4\right]^{2+}$

A

Only (i) is feasible

B

Only (ii) is feasible

C

(i) and (ii) are feasible

D

(i) and (ii) are not feasible

3
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the nature of the bonding in anhydrous $\mathrm{AlCl}_3$ and hydrated $\mathrm{AlCl}_3$ respectively?

A

Ionic and ionic

B

Ionic and covalent

C

Covalent and ionic

D

Covalent and covalent

4
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following elements reacts with water?

A

C

B

Ge

C

Sn

D

Pb

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