General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 27)
27.
The element common to all acids is
hydrogen
carbon
sulphur
oxygen
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 1 of 2.

Sundar said:   1 decade ago
What is common to all acids, bases and salts?

Acids:

(1) All acids produce hydrogen ions, H+, in aqueous solution.
(2) Acids have sour taste.
(3) Acids dissolve in water to form solutions which conduct electricity.
(4) All acids turn damp blue litmus paper red.
(5) Acids react with reactive metals to form hydrogen and a salt.
(6) Acids react with carbonates to form a salt, CO2 and H20.
(7) Acids react with metal oxides and hydroxides to form a salt and H20.

Base:

(1) Base is any metal oxide or hydroxide.
(2) Base contains either oxide ions O2- or hydroxide ions, OH-.
(3) Base reacts with an acid to give a salt and H20.

Note: Bases include Alkalis, which produce OH- when dissolved in water, but not all bases are hydroxides. They can be metal oxides O2- without the H too.

Salts:

(1) All salts are ionic compounds.
(2) A salt contains a positive metal ion and a negative non-metal ion.
(3) Salts are formed when a metallic ion replaces one or more hydrogen ions of an acid.
(2)

Animesh said:   1 decade ago
But it's not applicable for Lewis acids (Al2O3, BF3...etc)
(2)

Sriram said:   1 decade ago
All acid essentially should have a tendency to produce a proton.

H+ is a ready proton which almost all acid produce.
(1)

Hansraj sharma said:   1 decade ago
The acids contain more H+ ions, increase in H+ ions increase.

The acidic property that's why hydrogen is common in all acids.

Tiana said:   1 decade ago
What are the other elements in acids?
(1)

Vagdevi said:   1 decade ago
Most of the acids start with h+ and bases with oh-.

Deepak maurya said:   10 years ago
h+ shows the property of acid they have capacity to loss electron.

Indranil majumdar said:   10 years ago
Why not sulphur? Its an ionic bond.
(1)

Karthik Raja said:   9 years ago
All the acids have an replaceable hydrogen atom.
(1)

Rethabile said:   8 years ago
I don't understand this bases and acids. Help me please.
(1)


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