Elements

What does 'C' stand for?
Calcium
Chlorine
Carbon
Sodium
What is the Atomic No. For magnesium
8
9
11
12
What is Hydrogen?
Metal
Non-Metal
Metalloid
Inert/Noble Gas
What did Humphry Davy discover?
Sodium
Potassium
Boron
All of these
When was Sulphur first discovered?
2000 BC
3750 BC
1000 BC
1777 BC
Which element has E.C. of 2, 8, 5?
Aluminum
Silicon
Phosphorus
Sulphur
Does Neon have a valency?
Yes
No
Which element has Mass No. of 12?
Boron
Carbon
Nitrogen
Oxygen
What is the valency of Oxygen?
-1
+1
-2
+2
What did Lord Rayleigh and William Ramsay discover?
Argon
Neon
Helium
Oxygen
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