Tag: properties of acids and bases

Quizzes (0) Questions (142)

Questions Related to properties of acids and bases

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

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

  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. $MgCl _{2}(aq) + CO _{2}(g) + 3H _{2}O(l)$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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


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

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

_________ causes bubble formation when acid reacts with carbonates.

  1. Salt
  2. $CO _{2}$

  3. Water

  4. Oxygen
Reveal answer Fill a bubble to check yourself
B Correct answer
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.
$Acid + Metal\ carbonate \rightarrow Salt + Water + Carbon\ dioxide$

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

What is formed when acids react with carbonates?

  1. Salt

  2. Water

  3. Carbon dioxide

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
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:
$Acid + Metal\ carbonate \rightarrow Salt + Water + Carbon\ dioxide$

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

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
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

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

  1. calcium sulphate

  2. calcium

  3. calcium hydroxide

  4. hydrogen gas
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

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
Reveal answer Fill a bubble to check yourself
C Correct answer
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.
$Ca{\left(OH\right)} _{2}  + C{O} _{2}    \Rightarrow   CaC{O} _{3}  +  {H} _{2}O$.

Multiple choice chemistry acids and alkalis acids with carbonates reactions of acids and bases properties of acids and bases

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

  1. ${O} _{2}$
  2. $C{O} _{2}$
  3. ${H} _{2}$
  4. ${Cl} _{2}$
Reveal answer Fill a bubble to check yourself
B Correct answer
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.
$HCl  +  NaHC{O} _{3}  \rightarrow   NaCl  +  C{O} _{2}  +  {H} _{2}O$.