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1
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Identify the pair of element in which the number of $s$-electrons to $p$-electrons ratio is $2: 3$
A
P, Mg
B
$\mathrm{P}, \mathrm{Ca}$
C
$\mathrm{O}, \mathrm{Mg}$
D
O, S
2
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following has the least electron gain enthalpy?
A
Chlorine
B
lodine
C
Oxygen
D
Sulphur
3
TS EAMCET 2023 (Online) 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) First ionisation enthalpy of oxygen is less than that of nitrogen.

Reason (R) Atoms with half-filled or completely filled orbitals are less stable.

The correct option among the following is

A

(A) and (R) are true and (R) is the correct explanation of (A).

B

(A) and (R) are true, but (R) is not the correct explanation of (A).

C

(A) is true but (R) is false.

D

(A) is false but (R) is true.

4
TS EAMCET 2023 (Online) 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Tha atomic radius of gallium is less than that of aluminium. This is due to

A

greater shielding power of s-electrons of gallium atom.

B

poor shielding power of s-electrons of gallium.

C

poor shielding power of $d$-electrons of gallium.

D

greater shielding power of $d$-electrons of gallium.

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