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

What is the correct order of atomic radius of $\mathrm{Al}, \mathrm{Na}, \mathrm{B}$ and Be ?

A

$\mathrm{Be}<\mathrm{Na}<\mathrm{Al}<\mathrm{B}$

B

$\mathrm{B}<\mathrm{Be}<\mathrm{Al}<\mathrm{Na}$

C

AI $<\mathrm{Be}<\mathrm{B}<\mathrm{Na}$

D

$\mathrm{Na}<\mathrm{Al}<\mathrm{B}<\mathrm{Be}$

2
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

3
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

$\mathrm{SF}_4$

4
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

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

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