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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
Positive particle in discharged tube is produced by ionization of gas molecules, which is caused by
Question # 2
Charge to mass ratio of electron was discovered by:
Question # 3
The symbol of the element whose atoms have the outer most electronic configuration 2s22p3is
Question # 4
Splitting of spectral lines when atoms are subjected to strong electric field is called:
Question # 5
The electron in an atom
Question # 6
What is the packet of energy called?
Question # 7
Subsidiary quantum number specifies
Question # 8
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 # 9
The size of electronic shell is described by
Question # 10
When the 6d orbital is completed the entering electron goes into
Question # 11
The limiting line of Blamer series in hydrogen spectrum lies in
Question # 12
For a 3P subshell the set of principle and azimuthal quantum number is
Question # 13
In the ground state of an atom, the electron is present
Question # 14
Which one of the following particles has amass 1/1836 time, that of hydrogen?
Question # 15
Anode is the surface on which probability of finding electron is:
Question # 16
Neutrons was discovered by
Question # 17
The orbitals having n + l = 5 are
Question # 18
The energy of ionization of an atom is the energy difference between orbital
Question # 19
The charge over mass ratio of electron is:
Question # 20
The value of R (Rydberg's constant) is _______ m-1
Question # 21
The quantum number which describes the shape of the orbital is
Question # 22
The number of neutrons in the element 94Be is
Question # 23
In Bohr model of hydrogen atom the distance between adjacent orbits increases away from the nucleus, the energy difference between the orbits
Question # 24
Azimuthal quantum number of last electron of 11Na is
Question # 25
The four quantum numbers of the valency electron of potassium are
Question # 26
Which of the following has more unpaired d-electrons?
Question # 27
Charge of an electron is:
Question # 28
When potassium metal is exposed to violet light
Question # 29
The uncertainty principle was stated only
Question # 30
If the value of principal quantum number is 3. the total possible values for magnetic quantum number will be
Matric Part 2/10th Class English Chapter 1 MCQ Test With Answer for Chapter 1 Hazrat Muhammad (S.A.W) an Embodiment of Justice
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Biology Chapter 1 - Answers Mode
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Biology Chapter 1 MCQ - PDF
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Download PDF with answers to study online or offline. The PDF cotnains all MCQ questions with answers for Class 10 Biology Chapter 1 - Acids and Liquids. Total questions are 12.
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