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SET-1
SET-2
SET-3
SET-4
SET-5
SET-6
SET-7
1.
The statement that the electron occupies available orbital singly before painting occurs is called
A.
Einstein principle
B.
Rutherford hypothesis
C.
Hund’s rule
D.
Pauli’s exclusion principle
Answer :
Answer & Solution
2.
Atomic number is denoted by which alphabet?
A.
A
B.
E
C.
N
D.
Z
Answer :
Answer & Solution
3.
What is the mass of onbe of a substance in grams is called?
A.
Molecular Mass
B.
Atomic Mass
C.
Nuclear mass
D.
None of these
Answer :
Answer & Solution
4.
Number of neutrons in an atom of hydrogen is
A.
0
B.
1
C.
2
D.
3
Answer :
Answer & Solution
5.
How are ‘anions’ formed?
A.
Removal of proton
B.
Removal of electron
C.
Addition of election
D.
Addition of proton
Answer :
Answer & Solution
6.
Which among the following is a negatively charged ion?
A.
Silver ion
B.
Iodine ion
C.
Calcium ion
D.
Zine ion
Answer :
Answer & Solution
7.
How is atomic mass number determined?
A.
By adding number of protons and neutrons
B.
By total number of electrons
C.
By total number of protons
D.
By total numbers of neutrons
Answer :
Answer & Solution
8.
What are isobars?
A.
Elements with different atomic number but different mass number
B.
Elements with same atomic number but same mass number
C.
Elements with same atomic number but different mass number
D.
Elements with different atomic number but same mass number
Answer :
Answer & Solution
9.
Nitrogen atom has unpaired electrons. This can be explained as due to
A.
Aufbau principle
B.
Uncertainty principle of Heisenberg
C.
Hund’s rule
D.
Pauli’s exclusion principle
Answer :
Answer & Solution
10.
How are Cations formed?
A.
Addition of proton
B.
Removal of proton
C.
Addition of electron
D.
Removal of electron
Answer :
Answer & Solution
11.
who discovered proton?
A.
Friedrich Miescher
B.
Ernest Rutherford
C.
Goldstein
D.
Henry Cavendish
Answer :
Answer & Solution
12.
The subatomic particle that does not have any electric charge is a/an _____
A.
Electron
B.
Neutron
C.
Proton
D.
All options are correct
Answer :
Answer & Solution
13.
Which amongst the following is not a Cation?
A.
Copper ion
B.
Aluminium ion
C.
Sulphate ion
D.
Zinc ion
Answer :
Answer & Solution
14.
Which of the following elements has the lowest melting point?
A.
Platinum
B.
Carbon
C.
Cobalt
D.
Krypton
Answer :
Answer & Solution
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