Tag: chemical from common salt

Questions Related to chemical from common salt

Baking soda is a/an:

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. acidic substance

  2. basic substance

  3. neutral substance

  4. none of these

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Correct Option: B
Explanation:

Baking soda is sodium bicarbonate or sodium hydrogen carbonate. It has slightly salty, alkaline taste resembling that of washing soda. Its alkalinity in aqueous solution is because of formation of carbonic acid and hydroxide ion.
${ HCO } _{ 3 }^{ - }+{ H } _{ 2 }O\rightarrow { H } _{ 2 }{ CO } _{ 3 }+{ OH }^{ - }$

One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is:

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. acetic acid

  2. oxalic acid

  3. carbonic acid

  4. tartaric acid

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Correct Option: D
Explanation:

Tartaric acid used in baking powder where it serves as the source of acid that reacts with baking soda. This reaction produces carbon dioxide gas and lets products rise using active yeast cultures as a source of carbon dioxide gas.

Baking powder contains Sodium Hydrogen Carbonate, and__________.

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. tartaric acid

  2. sodium carbonate

  3. calcium chloride

  4. acetic acid

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Correct Option: A
Explanation:
Baking powder contains Sodium Hydrogen Carbonate $NaHCO _3$, and tartaric acid. It is used for increasing the volume and lightening the texture of baked goods. It releases carbon dioxide gas into a batter or dough through an acid-base reaction, causes bubbles in the wet mixture which expands and thereby  leavening the mixture.

Which of the following compounds is known as baking soda?

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. Sodium carbonate

  2. Calcium carbonate

  3. Sodium bicarbonate

  4. Calcium bicarbonate

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Correct Option: C
Explanation:

Sodium Bicarbonate (NaHCO3) is called baking soda because when heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, doughnuts, and bread.

Sodium bicarbonate is also known as:

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. washing soda

  2. baking soda

  3. glauber's salt

  4. lime soda

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Correct Option: B
Explanation:

Sodium bicarbonate, also commonly known as baking soda, is commonly seen as a white, fine powder and has the chemical formula NaHCO3. It has one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms. It is a very useful chemical that is alkaline in nature.

The compound present in baking powder is:

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. sodium bicarbonate

  2. sodium carbonate

  3. potassium carbonate

  4. potassium bicarbonate

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Correct Option: A
Explanation:

Sodium bicarbonate 

IUPAC name: sodium hydrogen carbonate.
Commo name : as baking soda, 
Chemical formula NaHCO3.

Baking soda chemically is sodium bicarbonate ($ NaHCO _{3}$).

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. True

  2. False

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Correct Option: A
Explanation:

Baking soda is the common name of Sodium bicarbonate

Common Name: Baking soda
IUPAC Name: Sodium bicarbonate
Chemical formula: $NaHCO _3$

When baking soda reacts with vinegar, _________ is formed.

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. sodium carbonate

  2. sodium hydrogen carbonate

  3. sodium acetate

  4. none of above

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Correct Option: C
Explanation:

The reaction between baking soda (sodium bicarbonate) and vinegar (dilute acetic acid) generates carbon dioxide gas and sodium acetate.
$ NaHCO _3 + CH _3COOH \rightarrow  CH _3COONa + H _2O + CO _2 $

A constituent of gasoline is:

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. $NaHCO _3$

  2. $H _2SO _4$

  3. $CH _4$

  4. $Ca(OH) _2$

  5. $C _8H _{18}$

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Correct Option: E
Explanation:

A constituent of gasoline is octane $\displaystyle C _8H _{18}$.
Gasoline is also known as petrol. it contains a mixture of hydrocarbons.

How would you distinguish between baking powder over washing soda by heating?

chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

  1. Carbon dioxide is evolved in the reaction

  2. Carbon dioxide is not evolved in the reaction

  3. Hydrogen is evolved in the reaction

  4. They can be heated at high temperatures

Show answer
Correct Option: A
Explanation:

The production of carbon dioxide is main characteristic of baking soda that makes it suitable for baking.Baking soda gives carbon dioxide and water vapour on heating at even low temperature such as $1000^oC$. The gas so formed turns lime water milky, which confirms the presence of carbon dioxide gas. When Washing soda ($Na _2CO _3$) is heated it does not produce carbon dioxide even at high temperature, such as $200^0C$ or $300^oC$. However sodium carbonate gives sodium oxide and carbon dioxide when heated at about $1000^oC$.

The gas produced by heating of the samples can be checked by passing through lime water. If the lime water turns milky then the evolved gas is carbon dioxide and the heated substance is baking powder.

$2NaHCO _{3} \xrightarrow{Heat} Na _{2}CO _{3} + H _{2}O + CO _{2}$

$Na _{2}CO _{3}.10H _{2}O \xrightarrow{Heat}Na _{2}CO _{3} + 10H _{2}O$