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

Find the element, which displays greater ability to form $p \pi-p \pi$ multiple bonds to itself and to other elements in the same block.

A

Na

B

Mg

C

Li

D

N

2
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the sulphur compound follows the octet rule?

A

$\mathrm{H}_2 \mathrm{SO}_4$

B

$\mathrm{SF}_6$

C

$\mathrm{SCl}_2$

D

$\mathrm{SF}_4$

3
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

$\Delta_r H$ of which reaction correctly represents the lattice enthalpy of $\mathrm{NaCl}(s)$ ?

A

$\mathrm{NaCl}(\mathrm{s}) \longrightarrow \mathrm{Na}(\mathrm{g})+\mathrm{Cl}(\mathrm{g})$

B

$\mathrm{NaCl}(\mathrm{s}) \longrightarrow \mathrm{Na}^{+}(\mathrm{g})+\mathrm{Cl}^{-}(\mathrm{g})$

C

$\mathrm{Na}(g)+\mathrm{Cl}(g) \longrightarrow \mathrm{NaCl}(s)$

D

$\mathrm{Na}^{+}(g)+\mathrm{Cl}^{-}(g) \longrightarrow \mathrm{NaCl}(\mathrm{s})$

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

The volume of a given amount of gas at $27^{\circ} \mathrm{C}$ at constant pressure is $420 \mathrm{~cm}^3$. If the temperature is reduced by $20^{\circ} \mathrm{C}$ at constant pressure, what will be the volume of the gas?

A

$350 \mathrm{~cm}^3$

B

$392 \mathrm{~cm}^3$

C

$450 \mathrm{~cm}^3$

D

$480 \mathrm{~cm}^3$

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