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

The freezing point of heavy water at 1 atm pressure is

A

$0^{\circ} \mathrm{C}$

B

$3.8^{\circ} \mathrm{C}$

C

$4.8^{\circ} \mathrm{C}$

D

$1^{\circ} \mathrm{C}$

2
TS EAMCET 2022 (Online) 18th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The most effective water softening method is

A

lime - soda process

B

permutit process

C

ion - exchange process

D

boiling followed by filtration

3
TS EAMCET 2022 (Online) 18th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

On passing electric current over molten ionic hydrides of $s$-block elements,

A

$\mathrm{H}_2$ is liberated at the anode

B

$\mathrm{H}_2$ is liberated at the cathode

C

no reaction takes place

D

metal oxidises at the cathode

4
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When calcium carbide is reacted with heavy water, which of the following product(s) will be formed

I. $\mathrm{CD}_4$

II. $\mathrm{C}_2 \mathrm{D}_2$

III. $\mathrm{Ca}(\mathrm{OD})_2$

IV. $\mathrm{Ca}_2 \cdot \mathrm{D}_2 \mathrm{O}$

A

I and IV

B

II and III

C

I, II and III

D

I, II, III and IV

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