1
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
If uncertainty in position and momentum of an electron are equal, then uncertainty in its velocity is
A
$\frac{1}{2 m} \sqrt{\frac{h}{\pi}}$
B
$\frac{1}{m} \sqrt{\frac{h}{\pi}}$
C
$\sqrt{\frac{h}{\pi}}$
D
$m \sqrt{\frac{h}{\pi}}$
2
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The graph between variation of probability density. $\psi^2(r)$ and distance of the electron from the nucleus, $r$ is shown below. This represents

AP EAPCET 2024 - 20th May Evening Shift Chemistry - Atomic Structure Question 3 English

A
$1 s$-orbital
B
$2 s$-prbital
C
3 s-orbital
D
$4 s$-orbital
3
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Match the following.
List I List II
A. Technicium I. Non-metal
B. Fluorine II. Transition metal
C. Tellurium III. Lanthanoid
D. Dysprosium IV. Metalloid
A
A-II, B-I, C-III, D-IV
B
A-III, B-I, C-IV, D-II
C
A-II, B-I, C-IV, D-III
D
A-IV, B-I, C-II, D-III
4
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Observe the following reactions. Identify the reaction in which the hybridisation of underlined atom is changed
A
$\mathrm{NH}_3+\mathrm{H}^{+} \longrightarrow \mathrm{NH}_4^{+}$
B
$\mathrm{PCl}_3+3 \mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{H}_3 \mathrm{PO}_3+3 \mathrm{HCl}$
C
$\mathrm{NaNO}_3+\mathrm{H}_2 \mathrm{SO}_4 \longrightarrow \mathrm{NaHSO}_4+\mathrm{HNO}_3$
D
$\mathrm{XeF}_6+\mathrm{H}_2 \mathrm{O} \longrightarrow \underline{\mathrm{XeOF}}_4+2 \mathrm{HF}$
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