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π30π3
β¦ is an allotroph of carbon and is the hardest natural substance
Anonymous Quiz
79%
Diamond
11%
Graphite
6%
Silver
4%
Fullerene
π17π₯°1
Metals above hydrogen in the activity series can displace β¦β¦β¦ from dilute acids.
Anonymous Quiz
51%
Hydrogen
26%
Helium
13%
Lithim
10%
Boron
π€©9β€4π3π2π1
The extraction of metals from their ores and then refining them for use is known as β¦β¦
Anonymous Quiz
20%
Sonorous
22%
Ductility
51%
metallurgy
6%
None.
π11π₯°2β€1π₯1
Metals which are so soft that they can be cut with a knife are β¦β¦
Anonymous Quiz
55%
Na
23%
Mg
12%
Al
10%
Si
π9π₯3β€2π2π2π₯°1
A non-metal which is lustrous is β¦β¦β¦
Anonymous Quiz
24%
Sodium
35%
Iodine
17%
Silver
24%
Diamond
π9π₯°3π₯2
Forwarded from Shubham Jha - Class 9
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π4
The atomic number of an element βXβ is 12. Which inert gas is nearest to X?
Anonymous Quiz
21%
He
55%
Ne
17%
Ar
7%
Xe
π7π4π3π€2