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Chemistry Model Examination.pdf
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Forwarded from Entrance _ Accelerators
Who discovered radioactivity?
Anonymous Quiz
17%
Marie Curie
37%
Henri Bequerel
6%
Pierre Curie
40%
Ernest Rutherford
Forwarded from Entrance _ Accelerators
Which of the following is isoelectronic with Ne?
Anonymous Quiz
14%
CaF2
49%
NaCl
22%
AlBr3
15%
MgN2
Forwarded from Entrance _ Accelerators
Forwarded from Entrance _ Accelerators
Forwarded from Entrance _ Accelerators
Which one has spΒ³dΒ² hybridization?
Anonymous Quiz
33%
SF6
8%
IF5
23%
XeF4
12%
Pcl5
26%
All except PCl5
Forwarded from Entrance _ Accelerators
Which one was wrong about photoelectric effect according to classical theory?
Anonymous Quiz
25%
The intensity of light determines the ejection of electrons and their kinetic energy after ejection
30%
If low frequency light is used, there should be time delay for the ejection of electrons
35%
Electrons are ejected only if the light has a frequency above the threshold frequency
11%
The intensity of the wave is directly related to the ejection of electrons
Forwarded from Entrance _ Accelerators
Who proved photon's particle nature by colliding x-rays with electrons?
Anonymous Quiz
33%
Albert Einstein
8%
Arthun Compton
31%
Lewis de Broglie
28%
Ernest Rutherford
Forwarded from Entrance _ Accelerators
What is the energy change of an electron in the hydrogen atom if it moves from n=2 to n=6(according to Bohr)
Anonymous Quiz
13%
4.086Γ10-ΒΉβΉJ
54%
4.844Γ10-ΒΉβΉJ
20%
2.4378Γ10βΆJ
13%
None
Forwarded from Entrance _ Accelerators
Which one is incorrect?
Final Results
0%
Ionisation energy of Group 3 elements is less than that of Group 2 elements
100%
Electron affinity of noble gases and Group 2 elements is almost zero
0%
Electron affinity of Flourine is less that that of Chlorine because Flourine has compact shape
0%
Ionisation energy of Group 4 elements is less than that of Group 5 elements
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1000 BIOLOGY QUESTIONS 2025 last.docx
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