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

How many of the following statements are correct?

(A) ' $\mathrm{He}^{\prime}$ ' is the second most abundant element in the universe.

(B) The symbol for the element with atomic number 110 is Ds.

(C) Osmium has the highest density among all elements.

(D) Francium is the most electropositive element in the periodic table.

A

3

B

2

C

4

D

1

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

The correct order of the first ionisation enthalpies of the following elements is

A

$\mathrm{Li}<\mathrm{B}<\mathrm{Be}<\mathrm{N}$

B

$\mathrm{Li}<\mathrm{Be}<\mathrm{B}<\mathrm{N}$

C

$\mathrm{N}<\mathrm{Be}<\mathrm{B}<\mathrm{Li}$

D

$\mathrm{N}<\mathrm{B}<\mathrm{Be}<\mathrm{Li}$

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

Arrange the following ions in the correct order with respect to their ionic radii.

A

$\mathrm{Br}^{-}>\mathrm{Cl}^{-}>\mathrm{Na}^{+}>\mathrm{Be}^{2+}$

B

$\mathrm{Be}^{2+}>\mathrm{Na}^{+}>\mathrm{Cl}^{-}>\mathrm{Br}^{-}$

C

$\mathrm{Cl}^{-}>\mathrm{Br}^{-}>\mathrm{Na}^{+}>\mathrm{Be}^{2+}$

D

$\mathrm{Na}^{+}>\mathrm{Be}^{2+}>\mathrm{Br}^{-}>\mathrm{Cl}^{-}$

4
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

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

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