Questions
When marble chips are treated with $HCl $, which of the following gas is liberated?
- CO$ _2$
- O$ _2$
- CO
- NO$ _2$
$Ca(HCO _{3}) _{2} + 2HCl \rightarrow $
- $CaCl _{2} + 2H _{2}O + 2CO _{2}$
- $2CaCl _{2} + 2H _{2}O + 2CO _{2}$
- $CaCl _{2} + 4H _{2}O + 2CO _{2}$
- $CaCl _{2} + 2H _{2}O + 4CO _{2}$
Acids react with carbonate and bicarbonates to liberate $CO _{2}$.
- True
- False
Metal carbonates react with _______ to give salt, carbon dioxide and water.
- acids
- bases
- alkalis
- non-metals
Choose the correct option to complete the reaction.
$CaCO _{3}(s) + 2HCl(aq) \rightarrow $
- $2CaCl _{2}(aq) + H _{2}O(l) + CO _{2}(g)$
- $CaCl _{2}(aq) + 3H _{2}O(l) + CO _{2}(g)$
- $2CaCl _{2}(aq) + 4H _{2}O(l) + CO _{2}(g)$
- $CaCl _{2}(aq) + H _{2}O(l) + CO _{2}(g)$
Hydrochloric acid react with carbonate to form:
- carbide
- hydride
- chloride
- none of the above
$2HCl{(aq)} + MgCO _{3}(s)\rightarrow$
- $MgCl _{2}(aq) + CO _{2}(g) + H _{2}O(l)$
- $MgCl _{2}(aq) + CO _{2}(g)$
- $MgCl _{2}(aq) + H _{2}O(l)$
- $MgCl _{2}(aq) + CO _{2}(g) + 3H _{2}O(l)$
_________ causes bubble formation when acid reacts with carbonates.
- Salt
- $CO _{2}$
- Water
- Oxygen
$H _{2}SO _{4} + CuCO _{3} \rightarrow$ ____ $ + H _{2}O + CO _{2}$
- $CuSO _{4}$
- $CuSO _{3}$
- $CuSO _{2}$
- None of above
What is formed when acids react with carbonates?
- Salt
- Water
- Carbon dioxide
- All of above
What does an acid give when they react with metal hydrogen carbonate?
- $C{O} _{2}$
- ${H} _{2}O$
- Salt
- All of above
Why does baking soda and vinegar react with each other?
- Undergo acid base reaction
- Exchange atoms
- Both $(A)$ and $(B)$
- High temperature
When sulphuric acid reacts with calcium carbonate, ________ is formed.
- calcium sulphate
- calcium
- calcium hydroxide
- hydrogen gas
Why do the gas released when metal bicarbonates react with acid turns lime water milky?
- Formation of calcium hydrogen carbonate
- Precipitation of calcium hydrogen carbonate
- Formation of white calcium carbonate precipitate
- None of above
$HCl + NaHC{O} _{3}\rightarrow$
The given reaction releases which of the following gas?
- ${O} _{2}$
- $C{O} _{2}$
- ${H} _{2}$
- ${Cl} _{2}$
Acid rain causes damage to the historical monuments like Taj Mahal. Why?
- Marble is made up of calcium carbonate
- Marble is made up of calcium hydroxide
- Marbles are made up of metal oxides
- None of above
Sodium hydrogen carbonate is commonly called as:
- sodium bicarbonate
- sodium carbonate
- both $A$ and $B$
- none of above
What is used with acid in fire extinguisher to produce carbon dioxide gas?
- Metal oxide
- Metal hydrogen carbonate
- Metallic acid
- Base
Why there is not much fizz when sulphuric acid and calcium carbonate react with each other?
- Salt formed is completely soluble
- Salt is not formed at all
- Salt formed is not very soluble
- $CO _2$ is not formed
The gas released when $NaHCO _3$ reacts with $HNO _3$ will:
- turn lime water milky
- release effervescence
- both $A$ and $B$
- burns with a pop sound
$ 2H _3PO _4 + 3Na _2CO _3 \rightarrow $
What are the products formed?
- $2NaPO _4 + 3H _2O + 3CO _2$
- $2Na _3PO _4 + 3H _2O + 3CO _2$
- $2Na _3PO _4 + H _2O + 3CO _2$
- $2Na _3PO _3 + 3H _2O + 3CO _2$
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains:
- $NaCl$
- $HCl$
- $LiCl$
- $KCl$
Which of the following represents the products obtained when, $HCl$ reacts with sodium hydrogen carbonate?
- $NaCl$, $H _2O$ and $CO _2$
- $NaCl$ and $CO _2$
- $NaOH$ and $CO _2$
- $NaOH$, $H _2O $ and $CO _2$
Which of the following represents the products obtained when $HCl$ reacts with calcium carbonate?
- $CaCl _2$, $H _2O$ and $CO _2$
- $CaCl _2$ and $CO _2$
- $Ca(OH) _2$ and $CO _2$
- $Ca(OH) _2$, $H _2O $ and $CO _2$
When an acid reacts with a metal carbonate or metal hydrogen carbonate, it gives the corresponding salt, gas and product. Name the gas and product?
- Carbon dioxide, Water
- Carbon dioxide, Salt
- Hydrogen, Salt
- All of the above
Choose the correct answer form the alternatives given.
The chemical name of baking soda is
- Sodium carbonate
- Sodium bicarbonate
- Sodium chloride
- Sodium nitrate