Study of orthoboric acid - class-XII
| Description: study of orthoboric acid | |
| Number of Questions: 44 | |
| Created by: Rekha Rai | |
| Tags: the p-block elements chemistry p- block elements-i some p-block elements the p-block elements - group 13 |
Which of the following is correct statement?
$H _{3}BO _{3}$ is a:
Boric acid is the trival name for ?
Boric acid on heating at $100^oC$ gives:
$\displaystyle B(OH) _{3}+NaOH\rightleftharpoons NaBO _{2}+Na[B(OH) _{4}]+H _{2}O$
$H _{3}BO _{3}\xrightarrow{T _{1}}X \xrightarrow{T _{2}} Y\xrightarrow{red hot} B _{2}O _{3}$ if $T _{1}<T _{2}$then X and Y respectively are :
Which of the following is correct statement?
Which one of the following is the correct statement?
The equilibrium constant for the reaction: $ H _3BO _3 + glycerin \rightleftharpoons (H _3BO _3 + glycerin complex ) $ is 0.90. How much glycerin should be added to I L of $ 0.10 M-H _3BO _3 $ solution, so that 60% of the $ H _3BO _3 $ is converted to boric acid glycerin complex?
$H _3BO _3$ is :
Which of the following statements regarding orthoboric acid $(H _3BO _3)$ is false?
$B(OH) _3+NaOH\rightarrow Na[B(OH) _4] _{(aq)}$
Which one of the following is/are incorrect statement(s)?
Boric acid is a very weak acid but in the presence of certain organic compounds, it acts as a strong acid. Which one of the following organic compound(s) cannot affect such change?
$2B+3H _{2}SO _{4}\rightarrow 2H _{3}BO _{3} +A$
The hybridization of central atom in compound A is :
$H _{3}BO _{3}\xrightarrow{375K} A \xrightarrow{Red \, Heat}B _{2}O _{3}$
$H _{3}BO _{3}\xrightarrow{435K} B \xrightarrow{Red \, Heat}B _{2}O _{3}$
The compounds A & B are:
Orthoboric acid when heated to red hot gives:
Which is the correct statement for $H _{3}BO _{3}$ ?
$BCl _{3}$ on hydrolysis gives:
Boric acid on heating yields:
Which of the following statements about $H _{3}BO _{3}$ is not correct?
Solid oxy acids of boron are.
$H _{3}BO _{3}\overset{T _{1}}{\rightarrow}X\overset{T _{2}}{\rightarrow}Y\overset{red:hot}{\rightarrow}B _{2}O _{2}$
The states of hybridisation of boron and oxygen atoms in boric acid $(\mathrm{H} _{3}\mathrm{B}\mathrm{O} _{3})$ are respectively:
$\mathrm{H} _{3}\mathrm{B}\mathrm{O} _{3}$ is:
Boric acid is :
Boric acid is a:
On the addition of mineral acid to an aqueous solution of borax, the compound formed is:
An aqueous solution of boric acid is found to be weakly acidic in nature. This acidic character arises due to the following reasons.
Which of the following compounds are formed when $BCl _3$ is treated with water?
Which of the following is not an application of orthoboric acid ?
Which one of the following statements is correct?
The reaction,
Aqueous solution of ortho-boric acid can be titrated against sodium hydroxide using phenolphthalein indicator only in presence of :
Orthoboric acid behaves as weak monobasic acid giving $H {3}O^{+}$ and ___.
Ortho-boric acid can be represented as $B\left ( OH \right ) _{3}$. It is :
Asseriton : In water, orthoboric acid behaves as a week monobasic acid.
Reason : In water, orthoboric acid act as a proton donor
Boric acid:
When orthoboric acid is strongly heated, residue are :
Which of the following statements about $H _3BO _3$ is not correct?
The correct statement(s) about orthoboric acids is/are :
Which one of the following statements about $H _3BO _3$ is not correct?
$B _{2}Ca _{6}O _{11}+ Na _{2}CO _{3}\overset{\Delta }{\rightarrow}\left [ X \right ]+CaCO _{3}+NaBO _{2}$ (unbalanced equation)
Correct choice(s) for [X] is/are: