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
Control and coordination are the functions of the nervous system and β¦β¦β¦ in our body.
Anonymous Quiz
69%
Harmones
11%
Sieves
15%
Aderanal
5%
None
π5π2π₯1
π9π₯4π3
Defeciency of β¦β¦β¦ hormone in childhood leads to dwarfism in humans.
Anonymous Quiz
64%
Growth
12%
Electrical
21%
Chemotorphic
3%
None
π13β€2π2π€2
Which of the following endocrine glands does not exist in pairs
Anonymous Quiz
21%
Testis
27%
Adernal
17%
Ovary
35%
Pituitary
π₯9π8