Most Popular Questions & Answers For ICSE Class 10 Chemistry

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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...

Uttam mazumder

Aug 28, 2013

1. Give reasons:

i) Mgcl₂ is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.

ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

Answer.

i). Polar molecules dissolves ...

Biswadeb Dasgupta

May 1, 2015

What does '1s², 2s²2p²' means?

This answer has an image. Please click on the question to read more.

Madhurima Majumdar

Oct 8, 2014

why are ionic compounds brittle. it is mentioned that they are strongly attached to each other and are hard solids yet it is also written in our book that they are brittle in nature. Can i have a solution to my confusion?

The ionic compounds are very hard and brittle. In ionic compounds the ions are rigidly held in a lattice because the positive and negative ions are strongly attracted to each other and difficult to separa...

Answer (1)

Class-X

Chemistry

OLD_Study of Compounds

Ketan Krishna Mishra

Mar 22, 2015

Explain fountain experiment?

Fountain experiment is used to demonstrate the solubility o...

Uttam mazumder

Jun 24, 2014

Given below shows the bonding structure of sulphuric acid.Explain even having coordinate bond between oxygen and sulphur atom, there is no net negative charge in the compound?

This answer has an image. Please click on the question to read more.

Mrs m Kundu

Jan 3, 2015

0.30 gm of an organic compound containing C, H & O on combustion gave 0.44 gm CO2 & 0.18 gm H2O. Determine the empirical formulae of compound.

This answer has an image. Please click on the question to read more.

Jivesh Bansal

Mar 31, 2017

Difference between aqueous solution and molten state

An aqueous solution

Answer (1)

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.

Uttam mazumder

Oct 19, 2013

On electroplating an article with silver we use sodium argentocyanide or potassium argentocyanide instead of silver nitrate as the deposition of silver is very fast andhence not smooth and uniform.How does use of silver nitrate, increase the speed of deposition?Explain

Ans: Rate of dissociation is high in the case of silver nitrate as it is ionic molecule where as Sodium argentocyanide or potassium argentocyanide is complex molecule. During the dissociation o...

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...

Uttam mazumder

Aug 28, 2013

1. Give reasons:

i) Mgcl₂ is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.

ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

Answer.

i). Polar molecules dissolves ...

Biswadeb Dasgupta

May 1, 2015

What does '1s², 2s²2p²' means?

This answer has an image. Please click on the question to read more.

Madhurima Majumdar

Oct 8, 2014

Answer (1)

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Academic Questions & Answers Forum

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

1. Give reasons:

i) Mgcl₂ is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.

ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

What does '1s², 2s²2p²' means?

why are ionic compounds brittle. it is mentioned that they are strongly attached to each other and are hard solids yet it is also written in our book that they are brittle in nature. Can i have a solution to my confusion?

Explain fountain experiment?

Given below shows the bonding structure of sulphuric acid.Explain even having coordinate bond between oxygen and sulphur atom, there is no net negative charge in the compound?

0.30 gm of an organic compound containing C, H & O on combustion gave 0.44 gm CO2 & 0.18 gm H2O. Determine the empirical formulae of compound.

Difference between aqueous solution and molten state

Difference between aqueous solution and molten state

what is basicity of an acid? Explain in detail

On electroplating an article with silver we use sodium argentocyanide or potassium argentocyanide instead of silver nitrate as the deposition of silver is very fast andhence not smooth and uniform.How does use of silver nitrate, increase the speed of deposition?Explain

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

1. Give reasons:

i) Mgcl₂ is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.

ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

What does '1s², 2s²2p²' means?

why are ionic compounds brittle. it is mentioned that they are strongly attached to each other and are hard solids yet it is also written in our book that they are brittle in nature. Can i have a solution to my confusion?

Explain fountain experiment?

Given below shows the bonding structure of sulphuric acid.Explain even having coordinate bond between oxygen and sulphur atom, there is no net negative charge in the compound?

0.30 gm of an organic compound containing C, H & O on combustion gave 0.44 gm CO2 & 0.18 gm H2O. Determine the empirical formulae of compound.

Difference between aqueous solution and molten state

Difference between aqueous solution and molten state

what is basicity of an acid? Explain in detail

On electroplating an article with silver we use sodium argentocyanide or potassium argentocyanide instead of silver nitrate as the deposition of silver is very fast andhence not smooth and uniform.How does use of silver nitrate, increase the speed of deposition?Explain

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Academic Questions & Answers Forum

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

1. Give reasons:i) Mgcl2 is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

What does '1s2, 2s2 2p2' means?

why are ionic compounds brittle. it is mentioned that they are strongly attached to each other and are hard solids yet it is also written in our book that they are brittle in nature. Can i have a solution to my confusion?

Explain fountain experiment?

Given below shows the bonding structure of sulphuric acid.Explain even having coordinate bond between oxygen and sulphur atom, there is no net negative charge in the compound?

0.30 gm of an organic compound containing C, H & O on combustion gave 0.44 gm CO2 & 0.18 gm H2O. Determine the empirical formulae of compound.

Difference between aqueous solution and molten state

Difference between aqueous solution and molten state

what is basicity of an acid? Explain in detail

On electroplating an article with silver we use sodium argentocyanide or potassium argentocyanide instead of silver nitrate as the deposition of silver is very fast andhence not smooth and uniform.How does use of silver nitrate, increase the speed of deposition?Explain

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

1. Give reasons:i) Mgcl2 is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

What does '1s2, 2s2 2p2' means?

why are ionic compounds brittle. it is mentioned that they are strongly attached to each other and are hard solids yet it is also written in our book that they are brittle in nature. Can i have a solution to my confusion?

Explain fountain experiment?

Given below shows the bonding structure of sulphuric acid.Explain even having coordinate bond between oxygen and sulphur atom, there is no net negative charge in the compound?

0.30 gm of an organic compound containing C, H & O on combustion gave 0.44 gm CO2 & 0.18 gm H2O. Determine the empirical formulae of compound.

Difference between aqueous solution and molten state

Difference between aqueous solution and molten state

what is basicity of an acid? Explain in detail

On electroplating an article with silver we use sodium argentocyanide or potassium argentocyanide instead of silver nitrate as the deposition of silver is very fast andhence not smooth and uniform.How does use of silver nitrate, increase the speed of deposition?Explain

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

1. Give reasons:

i) Mgcl₂ is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.

ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

What does '1s², 2s²2p²' means?

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

1. Give reasons:

i) Mgcl₂ is soluble in water but insoluble in acetone,while methene is insoluble but soluble in acetone.

ii) Iron displaces copper from a solution of a copper salt. the reaction is deemed as a redox reaction.

What does '1s², 2s²2p²' means?