Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear
searchtune
What people are asking?

A t Kumar

Jan 25, 2015

Explain the structure of diborane?

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

Answer (2)

Sanalkumar S

Feb 1, 2015

Give reason
1) Boric acid is a monobasic acid
2)PbCl4 is a good oxidising agent.

1) Boric acid is also known as orthoboric acid.

Formula of boric acid is B(OH)<...

Answer (1)

Yogeshree Pradhan

Jan 27, 2015

Aluminium trifluoride is insoluble in anhydrous HF but dissolves on addition of NaF .alluminium triflouride precipitates out of the resulting solution when gaseous BF3 is bubbled through. Give reasons.

Answer (1)

Adithyan Sanal

May 4, 2015

What happens when Silicon is heated with methyl chloride at high temperature in the presence of copper powder

Heating of  Silicon with methyl chloride at high temperature in the Presence of copper produ...

Answer (1)

San

May 8, 2014

Why Graphite is a soft lubricant and good conductor of electricity, where as diamond is a hard and nonconductor?

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

Answer (1)

Navaneeth K

Nov 13, 2014

First member of s and p block elements differ from the rest of the members . give reasons !

Ans: Because of their smaller size and absence of d-orbitals the first members of s, p-block elements posses different properties.
Ex: Nitrogen can show maximum valency of 3 it cannot expands it valency ...

Answer (1)

Prasad

May 23, 2014

Why diborane is stable even though it has deficiency in electrons?

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

Answer (1)

Prasad

May 23, 2014

Why diamond is a bad conductor of electricity while graphite is good conductor?

Diamond is made up of carbon atoms, and we know that carbon atoms are tetravalent i.e their valency is 4. In molecule of diamond, all the four valence electrons complete their bond where...

Answer (1)

Sanalkumar S

Feb 5, 2015

GIVE REASON FOR THE FOLLOWING 
A) BORON HAVE HIGH MELTING POINT.
B) AQUEOUS SOLUTION OF BORAX IS BASIC.

Ans: The melting point of boron is very high.

Reason: Boron exists as a gia...

Answer (1)

Sanalkumar S

Feb 5, 2015

WHAT HAPPENS WHEN ALUMINIUM 
A.ADDED TO A SOLUTION OF NaOH.
B.REACTS WITH HCl & REACTS WITH O2

A) Aluminium dissolves in NaOH forms soluble complex and liberates hydrogen gas.

Answer (1)

A t Kumar

Jan 25, 2015

Explain the structure of diborane?

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

Answer (2)

Sanalkumar S

Feb 1, 2015

Give reason
1) Boric acid is a monobasic acid
2)PbCl4 is a good oxidising agent.

1) Boric acid is also known as orthoboric acid.

Formula of boric acid is B(OH)<...

Answer (1)

Yogeshree Pradhan

Jan 27, 2015

Aluminium trifluoride is insoluble in anhydrous HF but dissolves on addition of NaF .alluminium triflouride precipitates out of the resulting solution when gaseous BF3 is bubbled through. Give reasons.

Answer (1)

Adithyan Sanal

May 4, 2015

What happens when Silicon is heated with methyl chloride at high temperature in the presence of copper powder

Heating of  Silicon with methyl chloride at high temperature in the Presence of copper produ...

Answer (1)

San

May 8, 2014

Why Graphite is a soft lubricant and good conductor of electricity, where as diamond is a hard and nonconductor?

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

Answer (1)

Navaneeth K

Nov 13, 2014

First member of s and p block elements differ from the rest of the members . give reasons !

Ans: Because of their smaller size and absence of d-orbitals the first members of s, p-block elements posses different properties.
Ex: Nitrogen can show maximum valency of 3 it cannot expands it valency ...

Answer (1)

Prasad

May 23, 2014

Why diborane is stable even though it has deficiency in electrons?

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

Answer (1)

Prasad

May 23, 2014

Why diamond is a bad conductor of electricity while graphite is good conductor?

Diamond is made up of carbon atoms, and we know that carbon atoms are tetravalent i.e their valency is 4. In molecule of diamond, all the four valence electrons complete their bond where...

Answer (1)

Sanalkumar S

Feb 5, 2015

GIVE REASON FOR THE FOLLOWING 
A) BORON HAVE HIGH MELTING POINT.
B) AQUEOUS SOLUTION OF BORAX IS BASIC.

Ans: The melting point of boron is very high.

Reason: Boron exists as a gia...

Answer (1)

Sanalkumar S

Feb 5, 2015

WHAT HAPPENS WHEN ALUMINIUM 
A.ADDED TO A SOLUTION OF NaOH.
B.REACTS WITH HCl & REACTS WITH O2

A) Aluminium dissolves in NaOH forms soluble complex and liberates hydrogen gas.

Answer (1)

Filters