Tag: acids with carbonates

Questions Related to acids with carbonates

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.

When sulphuric acid reacts with calcium carbonate, ________ is formed.

  1. calcium sulphate

  2. calcium

  3. calcium hydroxide

  4. hydrogen gas


Correct Option: A
Explanation:

Sulphuric acid gives calcium sulphate, carbon dioxide gas and water when it reacts with calcium carbonate.
$CaC{O} _{3}   +   {H} _{2}S{O} _{4}   \rightarrow   CaS{O} _{4}   +   C{O} _{2}   +   {H} _{2}O$.

Why do the gas released when metal bicarbonates react with acid turns lime water milky?

  1. Formation of calcium hydrogen carbonate

  2. Precipitation of calcium hydrogen carbonate

  3. Formation of white calcium carbonate precipitate

  4. None of above


Correct Option: C
Explanation:

When metal bicarbonates react with acid liberates carbon dioxide The gas evolved because of reaction of acid with metal carbonate or metal hydrogen carbonate turns lime water milky. This shows that the gas is carbon dioxide gas. This happens because of formation of white precipitate of calcium carbonate.
$Ca{\left(OH\right)} _{2}  + C{O} _{2}    \Rightarrow   CaC{O} _{3}  +  {H} _{2}O$.

$HCl  +  NaHC{O} _{3}\rightarrow$
The given reaction releases which of the following gas?

  1. ${O} _{2}$

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

  3. ${H} _{2}$

  4. ${Cl} _{2}$


Correct Option: B
Explanation:

Acids react with metal hydrogen carbonates and form corresponding salts, carbon dioxide and water. 
Example:
Hydrochloric acid on reaction with sodium bicarbonate forms sodium chloride, carbon dioxide and water.
$HCl  +  NaHC{O} _{3}  \rightarrow   NaCl  +  C{O} _{2}  +  {H} _{2}O$.

Acid rain causes damage to the historical monuments like Taj Mahal. Why?

  1. Marble is made up of calcium carbonate

  2. Marble is made up of calcium hydroxide

  3. Marbles are made up of metal oxides

  4. None of above


Correct Option: A
Explanation:

Acid rain causes damage to the historical monuments and other buildings. For example Taj Mahal, which is made of marble, is getting damaged because of reaction with acid rain. Marble is calcium carbonate which reacts with the acid and thus gets corroded.

Sodium hydrogen carbonate is commonly called as:

  1. sodium bicarbonate

  2. sodium carbonate

  3. both $A$ and $B$

  4. none of above


Correct Option: A
Explanation:

Sodium bicarbonate is also known as sodium hydrogen carbonate, baking soda, baking powder, bread soda and bicarbonate of soda.

What is used with acid in fire extinguisher to produce carbon dioxide gas?

  1. Metal oxide

  2. Metal hydrogen carbonate

  3. Metallic acid

  4. Base


Correct Option: B
Explanation:

Metal carbonate or metal hydrogen carbonate and acid are used in fire extinguisher to produce carbon dioxide gas. Acid and metal carbonate or bicarbonate are kept in separate chambers in a fire extinguisher. On emergency, they are allowed to react with one another. The carbon dioxide gas so produced is poured over fire. As carbon dioxide does not support burning, it puts off the fire.

Why there is not much fizz when sulphuric acid and calcium carbonate react with each other?

  1. Salt formed is completely soluble

  2. Salt is not formed at all

  3. Salt formed is not very soluble

  4. $CO _2$ is not formed


Correct Option: C
Explanation:

Using sulphuric acid and calcium carbonate, you don't get much of a fizz because the calcium sulphate salt formed, is not very soluble, and coats the remaining calcium carbonate inhibiting the reaction. This will happen with any reaction between an acid and a water insoluble reactant which forms an insoluble solid product.

The gas released when $NaHCO _3$ reacts with $HNO _3$ will:

  1. turn lime water milky

  2. release effervescence

  3. both $A$ and $B$

  4. burns with a pop sound


Correct Option: C
Explanation:

On adding a hydrogen carbonate to an acid, effervescence from carbon dioxide gas is released along with the formation of water and salt. $CO _2$ turns lime water milky.
$ NaHCO _3 + HNO _3 \rightarrow NaNO _3 + H _2O + CO _2 $