1
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What will be the organic compound formed, when aluminium carbide react with deuterated water?

A

$\mathrm{CD}_3 \mathrm{OD}$

B

DCOOD

C

$\mathrm{CD}_4$

D

$\mathrm{D}_3 \mathrm{C}-\mathrm{O}-\mathrm{CD}_3$

2
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the increasing order of hydration enthalpies of alkali metal ions?

A

$\mathrm{Rb}^{+}<\mathrm{Cs}^{+}<\mathrm{K}^{+}<\mathrm{Na}^{+}<\mathrm{Li}^{+}$

B

$\mathrm{Cs}^{+}<\mathrm{Rb}^{+}<\mathrm{K}^{+}<\mathrm{Li}^{+}<\mathrm{Na}^{+}$

C

$\mathrm{Cs}^{+}<\mathrm{Rb}^{+}<\mathrm{K}^{+}<\mathrm{Na}^{+}<\mathrm{Li}^{+}$

D

$\mathrm{Cs}^{+}<\mathrm{Rb}^{+}<\mathrm{Na}^{+}<\mathrm{K}^{+}<\mathrm{Li}^{+}$

3
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When orthoboric acid $\left(\mathrm{H}_3 \mathrm{BO}_3\right)$ is subjected to strong heating, the residue left is

A

diborane

B

boron

C

boric anhydride

D

borax

4
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When graphite is heated at $300^{\circ} \mathrm{C}$ with potassium vapour, it forms $\mathrm{C}_8 \mathrm{~K}$ compound that shows one of the following property.

A

Conducting and diamagnetic

B

Non-conducting and diamagnetic

C

Conducting and paramagnetic

D

Non-conducting and paramagnetic

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