The correct formula of borax is
$Na_2[B_4O_4(OH)_3].9 H_2O$
$Na_2[B_4O_5(OH)_4].8 H_2O$
$Na_2[B_4O_6(OH)_5].7 H_2O$
$Na_2[B_4O_7(OH)_6].6 H_2O$
Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$ : Boric acid is a weak acid
Reason $R$ : Boric acid is not able to release $H ^{+}$ion on its own. It receives $OH ^{-}$ion from water and releases $H ^{+}$ion.
In the light of the above statements, choose the most appropriate answer from the options given below.
Anhydrous $AlC{l_3}$ is obtained from
$Be ( OH )_2$ react with $Sr ( OH )_2$ to yield an ionic salt. Choose the incorrect option related to this reaction from the following:
When aqueous solution of borax is acidified with hydrochloric acid, a white crystalline solid is formed which is soapy to touch. Is this solid acidic or basic in nature ? Explain.
Boric acid is an acid because its molecule