Tag: reactions of acids and bases

Questions Related to reactions of acids and bases

Acids react with carbonate and bicarbonates to liberate $CO _{2}$.

  1. True

  2. False


Correct Option: A
Explanation:

The metal ion displaces the proton $(H^+)$ from the acid and a salt is formed along with carbonic acid $(H _2CO _3)$

However, $(H _2CO _3)$ is unstable in atmospheric conditions.
$MgCO _3+2HCl\longrightarrow MgCl _2+H _2CO _3$ (Equation $01$)
$H _2CO _3\longrightarrow H _2O+CO _2$ (Equation $02$)
By adding $01$ and $02$
$MgCl _2+2HCl\longrightarrow MgCl _2+H _2O+CO _2$
Similarly,
$Na _2CO _3+H _2SO _4\longrightarrow Na _2SO _4+H _2CO _3$
here, $H _2CO _3$ is split into $H _2O+CO _2$
$ZnCO _3+2HNO _3\longrightarrow Zn(NO _3) _2+H _2O+CO _2$

Metal carbonates react with _______ to give salt, carbon dioxide and water.

  1. acids

  2. bases

  3. alkalis

  4. non-metals


Correct Option: A
Explanation:

Metal carbonates react with acids to give salt, carbon dioxide and water.
$NaHCO _{3} + 2HCl (dil) \rightarrow NaCl + H _{2}O + CO _{2(g)}$.

Choose the correct option to complete the reaction.
$CaCO _{3}(s) + 2HCl(aq) \rightarrow $

  1. $2CaCl _{2}(aq) + H _{2}O(l) + CO _{2}(g)$

  2. $CaCl _{2}(aq) + 3H _{2}O(l) + CO _{2}(g)$

  3. $2CaCl _{2}(aq) + 4H _{2}O(l) + CO _{2}(g)$

  4. $CaCl _{2}(aq) + H _{2}O(l) + CO _{2}(g)$


Correct Option: D
Explanation:

$CaCO _{3}(s) + 2HCl(aq) \rightarrow CaCl _{2}(aq) + H _{2}O(l) + CO _{2}(g)$ 

All metal carbonates and hydrogen carbonates react with acids to gives corresponding salt, carbon dioxide and water.

Hydrochloric acid react with carbonate to form:

  1. carbide

  2. hydride

  3. chloride

  4. none of the above


Correct Option: C
Explanation:

Chloride
Hydrochloric acid reacts with Carbonate to form chlorides.
$2HCl+CaCo _3\rightarrow CaCl _2+H _2O+CO _2$

$2HCl{(aq)} + MgCO _{3}(s)\rightarrow$

  1. $MgCl _{2}(aq) + CO _{2}(g) + H _{2}O(l)$

  2. $MgCl _{2}(aq) + CO _{2}(g)$

  3. $MgCl _{2}(aq) + H _{2}O(l)$

  4. $MgCl _{2}(aq) + CO _{2}(g) + 3H _{2}O(l)$


Correct Option: A
Explanation:

$(A)$  $MgCl _{2}(aq)$ + $CO _{2}(g)$ + $H _{2}O(l)$


$Reaction$ : $2HCl(aq)$ + $MgCO _{3}(s)$ $\rightarrow$ $MgCl _{2}(aq)$ + $CO _{2}(g)$ + $H _{2}O(l)$

_________ causes bubble formation when acid reacts with carbonates.

  1. Salt

  2. $CO _{2}$

  3. Water

  4. Oxygen


Correct Option: B
Explanation:

When acids react with carbonates, such as calcium carbonate (found in chalk, limestone and marble) a salt, water and carbon dioxide are made. Carbon dioxide is formed as by product which causes bubbling during the reaction and can be detected using limewater.
$Acid + Metal\ carbonate \rightarrow Salt + Water + Carbon\ dioxide$

$H {2}SO _{4} + CuCO _{3} \rightarrow$ ___ $ + H _{2}O + CO _{2}$

  1. $CuSO _{4}$

  2. $CuSO _{3}$

  3. $CuSO _{2}$

  4. None of above


Correct Option: A
Explanation:

All carbonates react with acids to produce salt, water and carbon dioxide gas. 
$H _{2}SO _{4} + CuCO _{3} \rightarrow CuSO _{4} + H _{2}O + CO _{2}$

What is formed when acids react with carbonates?

  1. Salt

  2. Water

  3. Carbon dioxide

  4. All of above


Correct Option: D
Explanation:

When acids react with carbonates, such as calcium carbonate (found in chalk, limestone and marble), a salt, water and carbon dioxide are made. In general:
$Acid + Metal\ carbonate \rightarrow Salt + Water + Carbon\ dioxide$

What does an acid give when they react with metal hydrogen carbonate?

  1. $C{O} _{2}$

  2. ${H} _{2}O$

  3. Salt

  4. All of above


Correct Option: D
Explanation:

Acids give carbon dioxide gas, respective salt and water when they react with metal hydrogen carbonate.
Acid $+$ Metal hydrogen carbonate $\rightarrow$ Salt $+$ Carbon dioxide $+$ Water.

Why does baking soda and vinegar react with each other?

  1. Undergo acid base reaction

  2. Exchange atoms

  3. Both $(A)$ and $(B)$

  4. High temperature


Correct Option: C
Explanation:

Baking soda and vinegar react with each other because of an acid-base reaction. Baking soda is a bicarbonate $(NaHCO _{3})$ and vinegar is an acetic acid $(HCH _{3}COO)$. One of the products this reaction creates is carbon dioxide. Also Baking soda and vinegar react with each other because they exchange atoms. In this case, they are exchange a proton, which is a subatomic particle that makes atoms.