Question

a)Name the moderately reactive metal
b)Name the two elements reacting with water
c) Write higher reactive and less reactive elements metals from :- Copper,Gold,Magnesium,Sodium
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Answer 1

Answer:

a.The metal such as iron, zinc, lead and copper are moderately reactive.

b.Water-reactive substances are those that spontaneously undergo a chemical reaction with water, as they are highly reducing in nature. Notable examples include alkali metals, sodium through caesium, and alkaline earth metals, magnesium through barium.

c.Metal

Symbol

Reactivity

Extraction

Lithium Li Displaces H2 gas from water, steam and acids and forms hydroxides. Electrolysis

Potassium K

Strontium Sr

Calcium Ca

Sodium Na

Magnesium Mg Displaces H2 gas from steam and acids and forms hydroxides.

Aluminium Al

Carbon C Included for comparison.

Manganese Mn Displaces H2 gas from steam and acids and forms hydroxides. Smelting with coke

Zinc Zn

Chromium Cr

Iron Fe Displaces H2 gas from acids only and forms hydroxides.

Cadmium Cd

Cobalt Co

Nickel Ni

Tin Sn

Lead Pb

Hydrogen gas H2 Included for comparison.

Antimony Sb Combines with O2 to form oxides and cannot displace H2. Heat or physical extraction methods.

Arsenic Ar

Bismuth Bi

Copper Cu

Mercury Hg Found free in nature, oxides decompose with heating.

Silver Ag

Palladium Pd

Platinum Pt

Gold Au

Silver, gold, and platinum are

Answer 2

Answer:

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Explanation:

The name of this metal:

1. carbon
2. sodium