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- 1. Multiple Choice
Select an element which does not have neutron
Tritium
Helium
Protium
Deuterium
- 2. Multiple Choice
An element has 20 neutrons and 15 protons. Find the mass number of the atom.
25
20
30
35
- 3. Multiple Choice
Find the number of neutrons in the nucleus of an atom with atomic number 17 and mass number 37.
17
18
19
20
- 4. Multiple Choice
An element A with 10 neutrons, 9 protons and 10 electrons is
Cation
Anion
Isotopes
All of the above
- 5. Multiple Choice
Ammonia molecule has
Double Covalent Bond
Triple Covalent Bond
three single covalent bond
one single covalent bond
- 6. Multiple Choice
Calcium Oxide is formed by
Sharing of electron
Transfer of electron
- 7. Multiple Choice
Carbon Tetrachloride is
Electrovalent compound
covalent compound
noble gas
- 8. Multiple Choice
Water has
one lone pair
one bond pair
two lone pair
three bond pair
- 9. Multiple Choice
X has atomic number 11. Y has atomic number 17. State The formula of the compound formed between them
YX
X2Y
XY
Y2X
- 10. Multiple Choice
An element W has atomic number 9. Find out whether it is
metal
non-metal
noble gas
all of the above
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