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Characters of acids:

(1) acids convert blue litmus to red and methyl orange indicator to red .
(2) Sour in taste.
(3) It liberate hydrogen gas with active metals.
(4) Acids neutralized the effect of base
(5) acids increases the conduction of water.

Characters of bases:

(1) bases convert the red litmus to blue and methyl orange indicator to yellow.
(2) Phenylphthlene indicator (white) to pink.
(3) Bitter in taste and soapy in touch.
(4) Bases neutralised the effect of acid.
(5) They increases conductance of water.

Acid base concepts:

(1) Arrhenius acid base concept:

(2) Bronsted Lowery acid base concept:

(3) Lewis acid base concept:

(4) The Solvent System (Self or Auto Ionization of Solvent):

(5) The Lux-Flood Acids-base concept:

(6) The Usanovich Acid-base concept:

OXY ACIDS:

(1) Oxy acids of Boron:

(2) Oxy acids of Silicon:

(3) Oxy acids of Nitrogen:

(4) Oxy acids of Phosphorous:

(5) Oxy acids of Sulphure:

(7) Oxy acids of Chlorine:

(1) What are the oxy-acids?

(2) What are "Ortho" or "Meta" oxyacids?

(3) What are "pyro" oxy acids?

(4) Suffix – “ic-acids” , ‘us-acids” :

(5) Prefix “Hypo-acids”, and “Per-acids”:

(6) How to find oxy-linkage present in a given oxy-acid:

(7) How to pridict cyclic structure given compound/oxy-acid:

Related Questions:

(1) What is Use of Boric Acid?

(2) What is use of Orthoboric acids?

(3) What is basicity of "Boric acid" ?

(4) Why Boric acid exist in solid state ?

(5) What is structure of solid Ortho Boric acid ?

(6) What is effect of heat on Borax?

(7) What is the structure of trimetaboric acid and trimetaborate ion?

(8) What is the Sodium per borate ,give the structure and its uses?

(9) Why aqueous solution of borax reacts with two moles of acids ?

(10) What is the molecular formula of Borax ?

(11) Why Boric acid become strong acid in the presence of cis 1,2-diol or 1,3-diol ?

(12) Why Borazine is more reactive than benzene towards Electrophic Aromatic substitution reactions ?

(13) Why Borazine (B3N3H6) is also known as inorganic benzene ?.

If in given compounds number of substituents are integral multiple of central atoms (except P₄O₆,P₄O₁₀,P₄S₃,P₄S₁₀,(CH₂)₆N₄,B₄Cl₄) the compounds will be cyclic structure. And number of central atoms must be three (3) or more than three.

Meta phosphoric acids and their salts always exist in dimeric, trimeric, tetrameric or in polymeric linear as well as cyclic form, not in monomeric form due to the presence of weak (2p-3d- pi bond) bond the sodium salts of trimer and hexamer is very famous salts.