Tag: introduction to acid and base

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Questions Related to introduction to acid and base

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

The reaction of the acid and the ________ produces carbon dioxide, which causes dough and batters to rise.

  1. baking soda

  2. washing soda

  3. sodium hydroxide

  4. ammonium hydroxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Baking soda, known by chemists both as sodium bicarbonate and sodium hydrogen carbonate, is another example of a base with multiple purposes. The reaction of the acid and the baking soda produces carbon dioxide, which causes dough and batters to rise.

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

The acidic behavior of lakes and oceans can be neutralized by:

  1. $NaOH$
  2. $HCl$
  3. $CaCO _3$
  4. $Ca(OH) _2$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lakes and oceans can become acidic due to acid rain. This increases the acidity of such bodies and affects the aquatic life. To neutralize this acidic behavior of lakes and oceans, calcium carbonate $(CaCO _3)$ is used.

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

Toothpaste is _________  in nature.

  1. acidic

  2. basic

  3. neutral

  4. Both (A) and (B)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pH in our mouth is 5.5 which is slightly acidic. If the pH in our mouth decreases it results in tooth decay due to formation of certain acids. Toothpaste is basic in nature which neutralizes the acid and protects from tooth decay.

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

In which of the following, neutralisation reaction takes place?

  1. Treatment of acid or basic salt

  2. Treatment of acidic effluents

  3. Treatments of gastic patients

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

Treatment of gastric patients, treatment of acidic effluents from factory wastes and treatment of acid/base salts, are examples of neutralization in everyday life. Hence, D

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

If the soil is basic the plant do not grow proper, what should we add to it to improve its quality?

  1. Slaked lime

  2. Quick lime

  3. Urea

  4. Organic matter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To improve the quality of a basic soil, an acid should be added. Slaked lime ($ Ca{ (OH) } _{ 2 } $) and quick lime ($ Ca{ O }$) are basic in nature. Urea is neutral. Hence, organic matter is the answer.

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

Remedies of which of the following are examples of neutralisation in everyday life?

  1. Ant sting

  2. Indigestion

  3. Factory wastes

  4. None of these
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

The venom of ant sting is acidic in nature, which is neutralised by the application of alkali like sodium bicarbonate. Indigestion happens due to over production of hydrochloric acid in stomach, which is neutralised by an antacid which is alkali in nature. These are examples of neutralisation in everyday life.

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

For the growth of plants which of the following top soil is suitable the most:

  1. Clay soil

  2. Black soil

  3. Loam soil

  4. Sandy soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Loam soil is considered ideal for gardening and agricultural uses because it retains nutrients well and retains water while still allowing excess water to drain away.

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

Honey bee stings and ant bites can be _________ using alkaline medicine such as baking powder.

  1. acidifies

  2. neutralize

  3. prevented

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The venom of honey bee and ant bites are acidic in nature. So, it's effects can be neutralised by bicarbonate of soda such a baking soda or an alkali (basic in nature). 

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

Why bee strings are treated by alkaline solutions?

  1. Because it is basic in nature.

  2. Because it is acidic in nature.

  3. Because it is treatable by only alkaline solution.

  4. None of these.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The venom of a honey bee is acidic in nature. 


So, it's effects can be neutralised by bicarbonate of soda such a baking soda or an alkali (basic in nature). 

Hence the option B is correct.

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

Using toothpaste in daily life is the example of _________.

  1. acidic reaction

  2. basic reaction

  3. neutralization reaction

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Toothpaste is slightly basic is nature (pH ~ 8). The acid produced on the tooth enamel (commonly known as acid erosion) is neutralised by the toothpaste, cleaning your teeth. Hence, usage of toothpaste is the example of a neutralisation reaction.