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What people are asking?
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

Do basic solutions also have H+(aq) ? Why are they basic ?

Ans: When a base is dissolved in water then it will produce H⁺ ions as wells as OH⁻ ions.
if H⁺ ion concentration is more than OH⁻ ion then the solution is acidic...

Answer (2)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Chitravijith

Aug 26, 2015


what is basicity of an acid? Explain in detail

Basicity of an acid refers to the number of ionisable hydrogen ions(H+) produced when the acid dissolves in water.

Answer (2)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Ketan Krishna Mishra

Mar 22, 2015

what is aqua regia

Aqua regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid....

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

HCl, HNO3, C2H5OH, C6H12O6 all contain H atoms but 3 only HCI and HNO3 show acidic character. Why ?

Ans: It is because of the reason that in HCl, HNO₃ there is availability of acidic hydrogens (H⁺ ions).That is complete cations and anions formed, so that they are treated as acids....

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

Is PbO2, a base or not ? Comment.

Ans: PbO2 is a weakly basic oxide in nature.

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

You have been provided with three test tubes. One of them contains distilled water and the other two have an acidic solution and a basic solution respectively. lf you are given only red litmus paper, how will you identify the contents of each test tube?

Ans:  Using red litmus paper it is possible to find base among the given as the colour of red litmus will change to blue in presence bases only. So it is difficult to find the distilled wa...

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Vatsala Prasad

Jun 5, 2015

What is the difference between Hydroxide and Hydroxyl ion?

Hydroxide ion refers to OH group with negative charge and is present in ionic compounds like NaOH, KOH etc.Whereas hydroxyl group refers to OH functional group without negative charge and is binded to covalent ...

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

What effect does the concentration of [H3O+] ion have on solution ?

Ans: Increase in the concentration of H3O+ will increase the acidic nature of the solution.

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Rhishikesh

Jul 21, 2013

how to  make litmus solution?

mixture of green and blue algae

Answer (2)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Uttam mazumder

Jul 25, 2013

a compound X is an important ingradient of an antacid.It is also used in fire extegusers.Identified X

Ans: The compound is sodium bi carbonate as it is used as an important ingredient of an antacid because it neutralizes stomach acids. And also used in fire extinguishers as it produces carbon d...

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

Do basic solutions also have H+(aq) ? Why are they basic ?

Ans: When a base is dissolved in water then it will produce H⁺ ions as wells as OH⁻ ions.
if H⁺ ion concentration is more than OH⁻ ion then the solution is acidic...

Answer (2)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Chitravijith

Aug 26, 2015


what is basicity of an acid? Explain in detail

Basicity of an acid refers to the number of ionisable hydrogen ions(H+) produced when the acid dissolves in water.

Answer (2)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Ketan Krishna Mishra

Mar 22, 2015

what is aqua regia

Aqua regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid....

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

HCl, HNO3, C2H5OH, C6H12O6 all contain H atoms but 3 only HCI and HNO3 show acidic character. Why ?

Ans: It is because of the reason that in HCl, HNO₃ there is availability of acidic hydrogens (H⁺ ions).That is complete cations and anions formed, so that they are treated as acids....

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

Is PbO2, a base or not ? Comment.

Ans: PbO2 is a weakly basic oxide in nature.

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

You have been provided with three test tubes. One of them contains distilled water and the other two have an acidic solution and a basic solution respectively. lf you are given only red litmus paper, how will you identify the contents of each test tube?

Ans:  Using red litmus paper it is possible to find base among the given as the colour of red litmus will change to blue in presence bases only. So it is difficult to find the distilled wa...

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Vatsala Prasad

Jun 5, 2015

What is the difference between Hydroxide and Hydroxyl ion?

Hydroxide ion refers to OH group with negative charge and is present in ionic compounds like NaOH, KOH etc.Whereas hydroxyl group refers to OH functional group without negative charge and is binded to covalent ...

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Indranil sengupta

Aug 5, 2013

What effect does the concentration of [H3O+] ion have on solution ?

Ans: Increase in the concentration of H3O+ will increase the acidic nature of the solution.

Answer (1)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Rhishikesh

Jul 21, 2013

how to  make litmus solution?

mixture of green and blue algae

Answer (2)
Class-X
Chemistry
OLD_Acids, Bases and Salts

Uttam mazumder

Jul 25, 2013

a compound X is an important ingradient of an antacid.It is also used in fire extegusers.Identified X

Ans: The compound is sodium bi carbonate as it is used as an important ingredient of an antacid because it neutralizes stomach acids. And also used in fire extinguishers as it produces carbon d...

Answer (1)

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