Which of the following equation is not correctly matched - Vidyadip

MCQ

Which of the following equation is not correctly matched

✓
$H_3BO_3$ is a weak mono basic acid as it liberates hydroges ions as

$H_3BO_3 \longrightarrow H^+ + H_2BO_3^-$
B
${H_3}B{O_3}\xrightarrow{\Delta }\mathop {HB{O_2}\xrightarrow{{\operatorname{Re} d\,hot}}}\limits_{{\text{Meta Boric}}} \mathop {{B_2}{O_3}}\limits_{{\text{Boric oxide}}} $
C
$2BN + 6H_2O \longrightarrow 2H_3BO_3 + 2NH_3$
D
$Na_2B_4O_7.10H_2O + 2HCl \longrightarrow 2NaCl + 4H_3BO_3 + 5H_2O$

✓

Answer

Correct option: A.

$H_3BO_3$ is a weak mono basic acid as it liberates hydroges ions as

$H_3BO_3 \longrightarrow H^+ + H_2BO_3^-$

a
$H_3BO_3 + HOH \longrightarrow [B(OH)_4]^-+ H^+$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Hydrochloric acid solution $A$ and $B$ have concentration of $0.5\,N$ and $0.1\,N$ respectively. The volumes of solutions $A$ and $B$ required to make $2\,litres$ of $0.2\,N$ $HCl$ are

When a liquid boils, there is

Which of the following is the most electropositive element

Correct formula of calomel is

A complex containing $K^+, Pt(IV)$ and $Cl^-$ is $100\%$ ionised giving $i = 3$. Thus, possible complex is

Which one of the following orders is not in accordance with the property stated against it ?

${H_2}(g) + C{l_2}(g)\,\, \to \,\,2HCl(g)\,.\,\Delta H = - 44\,kcal$

$2Na(s) + 2HCl(g)\,\, \to \,\,2NaCl(s) + {H_2}(g),$$\Delta H = - 152\,kcal$ For the reaction $Na(s) + \frac{1}{2}C{l_2}(g)\,\, \to \,\,NaCl(s),\,\Delta H = $ .....$kcal$

Amongst $LiCl, RbCl,$ $BeC{l_2}$ and $MgC{l_2}$ the compounds with the greatest and the least ionic character, respectively, are

Which among the following is not true for a cyclic process:

If relative decrease in vapour pressure is $0.4$ for a solution containing $1\, mol$ $NaCl$ in $3\, mol$ of $H_2O$, the degree of ionization of $NaCl$ is .......... $\%$.