Tag: introduction to acid and base

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Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Calcium hydroxide (slaked lime) is used in :

  1. plastics and dyes

  2. fertilizers

  3. antacids

  4. white washing
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Calcium hydroxide called slaked lime is an inorganic compound. It is a colorless crystal and is obtained when calcium oxide is mixed with water. It is used in preparation of dry mixes for painting and white washing.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Caustic soda is the common name for:

  1. $\displaystyle { Mg\left( OH \right) } _{ 2 }$
  2. $\displaystyle KOH$
  3. $\displaystyle { Ca\left( OH \right) } _{ 2 }$
  4. $\displaystyle NaOH$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Caustic soda is sodium hydroxide which is a strong base and so it has high basicity value on $pH$ scale. It is widely used in acid-base titrations to neutralize various strong or weak acids like sulfuric acid.


Hence, the correct option is $\text{D}$

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Soda water contains :

  1. carbonic acid

  2. sulphuric acid

  3. carboxylic acid

  4. nitrous acid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Soda water is carbonated water. It contains water into which carbon dioxide gas under pressure has been dissolved. It is carbonic acid. The vast majority of carbonated water is sold in drink bottles as soft drinks and beverages.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Which of the following base is used as antacid to neutralize stomach acidity?

  1. ${ Mg(OH) } _{ 2 }$
  2. $KOH$
  3. ${ Ca(OH) } _{ 2 }$
  4. $NaOH$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Magnesium hydroxide is also known as milk of magnesia and it is a common component of antacids and laxatives. It interferes with the absorption of folic acid and iron. It carries away much of the body's supply of potassium and neutralizes the stomach acid.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

To protect tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is:

  1. acidic

  2. basic

  3. netural

  4. corrosive
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mouth has salivary amylase enzyme and the process of digestion starts from mouth making the acidic environment which causes the tooth decay so it is neutralized by using toothpaste basic in nature.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Milk of magnesia is an:

  1. acid

  2. antacid

  3. alkali

  4. rock salt
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

Milk of magnesia is $Mg(OH) _2$, it is an alkali.

Antacid is those compounds which completely neutralizes an acid.
For example: $\underbrace{Mg(OH) _2} _{Base}+\underbrace{H _2SO _4} _{Acid}\longrightarrow  \underbrace{MgSO _4} _{Neutral\ salt}+H _2O$
Thus, milk of magnesia is also an antacid.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Which of the following is a use of $Al(OH) _3$?

  1. It is used in fire extinguisher as a foaming agent

  2. It is used in the preparation of fertilizers

  3. It is used in removing stains of grease from cloths

  4. It is used as an antacid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$Al(OH) _3$ is used in fire extinguisher as a foaming agent.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Which of the following is a use of sodium hydroxide?

  1. It is used in the manufacture of soaps, paper.

  2. It is used in the manufacture of synthetic fibers like rayon.

  3. It is important constituent in drain cleaners.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sodium hydroxide is used in the manufacture of soaps, paper; in the manufacture of synthetic fibers like rayon and is important constituent in drain cleaners.


Hence option D is correct