1. What are indicators? Give examples. Why do we use indicators?
2. What are neutral substances? Give examples.
3. What are mineral acids? Give two examples.
4. Define neutralization.
5. Differentiate between weak and strong acids giving example for each.
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1. indicators are those who indicate the nature of any substance. We use indicators to detect the smell, nature etc of an substance.
2. The substance which are neither acidic nor basic are neutral substances. Eg: water,salt
3. Mineral acid are acids derived from an inorganic compound. Eg: sulphuric acid, hydrochloric acid
4. Neutralization is a chemical reaction in which an acid & base react quantitatively with each other.
5. Acid which are fully iodinised are strong acid Eg: hydrochloric acid. Which are partly iodinised are weak acid. Eg: ethanoic acid
2. The substance which are neither acidic nor basic are neutral substances. Eg: water,salt
3. Mineral acid are acids derived from an inorganic compound. Eg: sulphuric acid, hydrochloric acid
4. Neutralization is a chemical reaction in which an acid & base react quantitatively with each other.
5. Acid which are fully iodinised are strong acid Eg: hydrochloric acid. Which are partly iodinised are weak acid. Eg: ethanoic acid
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1.
Ans:- Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example isthe substance called methyl yellow, which imparts a yellow colour to an alkaline solution.
2.
Ans:-Water and human blood are greatexamples of neutral solutions. Acids mixed with bases can be neutralized and given a pH of 7. Water can break down to form (H+) and (OH-) ions. When these ions are equal to each other, the value is 1 *10^-7, or neutral
3.
Ans:- Commonly used mineral acids aresulfuric acid, hydrochloric acid andnitric acid (they are also known asbench acids). Mineral acids range fromsuperacids (perchloric acid) to very weak (boric acid). Mineral acids tend to be very soluble in water andinsoluble in organic solvents.
4.
Ans:-In chemistry, neutralization or neutralisation (see spelling differences) is a chemical reaction in which an acid and a base react quantitatively with each other. In a reaction in water, neutralizationresults in there being no excess of hydrogen or hydroxide ions present in the solution.
5.
Ans:-
Acid solutions contain hydrogen ions. ... Hydrochloric acid is a strong acidand ethanoic acid is a weak acid.Strong acids are fully ionised but weak acids are only partly ionised in solution. At the same concentration,strong acids have a higher concentration of hydrogen ions thanweak acids.
Hope it helpful
1.
Ans:- Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example isthe substance called methyl yellow, which imparts a yellow colour to an alkaline solution.
2.
Ans:-Water and human blood are greatexamples of neutral solutions. Acids mixed with bases can be neutralized and given a pH of 7. Water can break down to form (H+) and (OH-) ions. When these ions are equal to each other, the value is 1 *10^-7, or neutral
3.
Ans:- Commonly used mineral acids aresulfuric acid, hydrochloric acid andnitric acid (they are also known asbench acids). Mineral acids range fromsuperacids (perchloric acid) to very weak (boric acid). Mineral acids tend to be very soluble in water andinsoluble in organic solvents.
4.
Ans:-In chemistry, neutralization or neutralisation (see spelling differences) is a chemical reaction in which an acid and a base react quantitatively with each other. In a reaction in water, neutralizationresults in there being no excess of hydrogen or hydroxide ions present in the solution.
5.
Ans:-
Acid solutions contain hydrogen ions. ... Hydrochloric acid is a strong acidand ethanoic acid is a weak acid.Strong acids are fully ionised but weak acids are only partly ionised in solution. At the same concentration,strong acids have a higher concentration of hydrogen ions thanweak acids.
Hope it helpful
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