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ECAT Pre Engineering Chemistry Ch 5 Test
MCQ's Test For ECAT Chemistry Chapter 5 Atomic Structure Online Test
Try The MCQ's Test For ECAT Chemistry Chapter 5 Atomic Structure Online Test
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 5 Atomic Structure Online Test
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Question # 1
The order of distance between the various Bohr orbits is
Question # 2
Which of the following particles has longest wavelength, if they have same speed:
Question # 3
The spectrum of helium is expected to be similar to that of
Question # 4
When an electric current is passed through discharge tube at low pressure, cathode rays are emitted from cathode these rays consist of:
Question # 5
n + l value for 4f will
Question # 6
The divisibility of atom was shown by
Question # 7
No cathode rays are produced in the discharged tube when gas is under ordinary pressure even if voltage of 5000 to 10000 is applies. This reason is
Question # 8
Cathode rays drive a small paddle wheel placed in their path. This observation shows that
Question # 9
The symbol of the element whose atoms have the outer most electronic configuration 2s22p3is
Question # 10
For which of the following sets of quantum numbers and electron will have the highest energy?
Question # 11
In the ground state of an atom the electron is present
Question # 12
An electron has principal quantum number 3. The number of its 1 subshell and 2 orbitals would be respectively
Question # 13
Cathode rays emitted from cathode are
Question # 14
Which of the following is not isoelectronic?
Question # 15
When electron jumps from n2= 2,3,4,5,.... orbit to n1= 1 orbit in the hydrogen atom, the radiations emitted give the spectral lines
Question # 16
The value of Plank's constant 'h' is
Question # 17
The velocity of photon is:
Question # 18
When the 6d orbital is completed the entering electron goes into
Question # 19
When potassium metal is exposed to violet light
Question # 20
Maximum potential energy that an electron can have within the atom is:
Question # 21
In the ground state of an atom, the electron is present:
Question # 22
The wave number of light emitted by a certain source is 2 x 105m. The wavelength of this light will be:
Question # 23
Which one of the following particles has amass 1/1836 time, that of hydrogen?
Question # 24
The total number of orbitals in a shell with principal quantum number 'n' is
Question # 25
With increasing principle quantum number, the energy difference between adjacent energy levels in H atom
Question # 26
The radius of first orbit of H-atom is
Question # 27
Electrons arranged in orbitals according to the increasing order of their n + l values, this rule is named as
Question # 28
The orbitals having n + l = 5 are
Question # 29
Which of the following has more unpaired d-electrons?
Question # 30
In Millikan method for determination of charge on electron the air in the chamber is ionized by
ECAT Pre Eng. Chemistry Ch 5 Test
Here you can prepare ECAT Pre Engineering Chemistry Ch 5 Atomic Structure Test. Click the button for 100% free full practice test.
Top Scorers Of Chapter 5 "ECAT Chemistry Chapter 5 Atomic Structure Online Test" MCQ`s Test
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M M. Ibrar 31 - May - 2024 06 Min 39 Sec 90/120 -
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