Question

Q8. Complete the given table – (for each mistake 0.25 marks to be deducted)
Name of the salt Formula
Obtained from –
Base
Obtained from –
Acid
Nature of the salt
(i) Magnesium nitrate
(ii) Potassium sulphate
(iii) Calcium chloride
(iv) Zinc bromide
(v) Ammonium carbonate
(vi) Aluminium acetate
(vii) Sodium phosphate

Answer 1

Answer:

$\rule{300}{1.5}$

i) Magnesium Nitrate:

⇒ Its Formula is $\displaystyle\sf Mg\;(\;NO_{3}\;)_{2}$

⇒ Its Obtained From (Base) Magnesium Hydroxide

⇒ Its Obtained from (Acid) Nitric Acid.

Chemical Reaction of Acid & Base:

$\displaystyle\sf Mg\;(OH)_{\;2}+H\;NO_{\;3} \longrightarrow Mg\;(NO_{3})_{\;2}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

ii) Potassium Sulphate :

⇒ Its Formula is $\displaystyle\sf K_{2}\;SO_{\;4}$

⇒ Its Obtained From (Base) Potassium Hydroxide

⇒ Its Obtained from (Acid) Sulphuric acid.

Chemical Reaction of Acid & Base:

$\displaystyle\sf K\;OH+H_{\;2}\;SO_{\;4} \longrightarrow K_{\;2}\;SO_{4}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

iii) Calcium Chloride:

⇒ Its Formula is $\displaystyle\sf Ca\;Cl_{2}$

⇒ Its Obtained From (Base) Calcium Hydroxide

⇒ Its Obtained from (Acid) Hydrochloric Acid.

Chemical Reaction of Acid & Base

$\displaystyle\sf Ca\;(OH)_{\;2}+H\;Cl \longrightarrow Ca\;Cl_{\;2}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

iv) Zinc Bromide:

⇒ Its Formula is $\displaystyle\sf Zn\;Br_{\;2}$

⇒ Its Obtained From (Base) Zinc Hydroxide

⇒ Its Obtained from (Acid) Hydro Bromic Acid.

Chemical Reaction of Acid & Base

$\displaystyle\sf Zn\;(OH)_{\;2}+H\;Br \longrightarrow Zn\;Br_{\;2}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

v) Ammonium Carbonate:

⇒ Its Formula is $\displaystyle\sf (\;NH_{\;4}\;)_{\;2}\;CO_{\;3}$

⇒ Its Obtained From (Base) Ammonium Hydroxide

⇒ Its Obtained from (Acid) Carbonic Acid.

Chemical Reaction of Acid & Base

$\displaystyle\sf NH_{\;4}\;(OH)+H_{2}\;CO_{\;3} \longrightarrow (\;NH_{\;4}\;)_{\;2}\;CO_{\;3}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

vi) Aluminium acetate:

⇒ Its Formula is $\displaystyle\sf Al\;(\;CH_{3}COO\;)_{3}$

⇒ Its Obtained From (Base) Aluminium Hydroxide

⇒ Its Obtained from (Acid) Acetic Acid.

Chemical Reaction of Acid & Base

$\displaystyle\sf Al\;(OH)_{\;3}+CH_{\;3}COOH \longrightarrow Al\;(\;CH_{3}COO\;)_{3}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

vii) Sodium Phosphate:

⇒ Its Formula is $\displaystyle\sf Na_{\;3}\;PO_{\;4}$

⇒ Its Obtained From (Base) sodium Hydroxide

⇒ Its Obtained from (Acid) Phosphoric Acid.

Chemical Reaction of Acid & Base

$\displaystyle\sf Na\;OH+H_{\;3}\;PO_{\;4} \longrightarrow Na_{\;3}\;PO_{\;4}+H_2\;O$

( The above chemical reaction is not balanced )

$\rule{300}{1.5}$

$\rule{300}{1.5}$

An overview:

$\large \begin{tabular}{|c|c|c|c|}\cline{1-4} S.l\;No.&Salt&Base&Acid\\\cline{1-4}1&Mg(NO_{3})_{2}&Mg(OH)_{2}&HNO_{3}\\\cline{1-4}2& K_{2} SO_{4}&KOH&H_{2}SO_{4}\\\cline{1-4}3&CaCl_{2}&Ca(OH)_{2}&HCl\\\cline{1-4}4&ZnBr_{2}&Zn(OH)_{2}&HBr\\\cline{1-4}5&\;(NH_{4})_{2}CO_{3}&NH_{4}(OH)&H_{2}CO_{3}\\\cline{1-4}6&Al(CH_{3}COO)_{3}&Al(OH)_{3}&CH_{3}COOH\\\cline{1-4}7&Na_{3}PO_{4}&NaOH&H_{3}PO_{4}\\\cline{1-4}\end{tabular}$

$\rule{300}{1.5}$