// //]]>
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

Question & Answer Forum

Next time you have a doubt while studying, you know where to go. By simply posting your questions on Question & Answer Forum, you can have them answered by academic experts. You can also find related videos and explanations for better understanding.

Can’t find a match Ask?

Abhilasha answered 4 year(s) , 3 month(s) ago

write the chemical formula as well as structural formula of soaps and detergents

Soaps are sodium or potassium  salts of long chain  carboxylic acids. The  formula for soap is C₁₇H₃₅COONa, or sodium stearate

Asked by Aditya

Feb 17

  • 2 Answers
  • 1 Like
  • 56339 Views
Agam answered 1 year(s) , 10 month(s) ago

Given a chemical test to distinguish between (i) Ethane and ethene (ii) Ethanol and ethanoic acid (iii) Soaps and Detergents

Ans: ( i) Ethane and ethene:
Then,  addition of bromine water to both alkane and alkene. In which ever case colour changes that compound is ethene (alkene).
E...

Asked by Narasimha

Oct 7

  • 2 Answers
  • 1 Like
  • 47264 Views
Syeda answered 1 year(s) ago

In electrolysis of water, why is the volume of gas collected over one electrode double the volume of gas collected over the other electrode?

We usually perform Electrolysis to split constituents of water . Water composition is 2atoms of H and 1atom of O . Therefore H is double than O .                                                                ...

Asked by Vaibhav

Jan 5

  • 3 Answers
  • 2 Likes
  • 44321 Views
Syeda answered 1 year(s) ago

Write three difference between ethanol and ethanoic acid on the basis of chemical properties?

Ans: Ethanol Ethanoic acid The functional group in ethanol is -OH alcohol. And functional group in ethanoic acid is –COOH carboxylic acid It has sweet odour
  It has pungent odour It does not re...

Asked by Narasimha

Oct 7

  • 2 Answers
  • 2 Likes
  • 40024 Views
Swathi answered 4 year(s) , 5 month(s) ago

What is surgical spirit? Why it is used to clean cuts?

Some common uses of Surgical Spirit are:-

  • As a popular home remedy for sterilising and hardening the skin, especially on the feet of hill walkers and runners in order to help prevent blisters
...

Asked by Swathi

Jan 5

  • 2 Answers
  • 0 Like
  • 35968 Views
Syeda answered 2 year(s) ago

How does the tendency to gain electrons change as we go down the 16thgroup of periodic table? Why?

when we go down the 16th group of the periodic table,the tendency to gain electrons goes on decreasing. because when we go down in the 16th group the size of atom increases this results in increase in the tende...

Asked by Nimat

Mar 4

  • 15 Answers
  • 12 Likes
  • 27770 Views
Syeda answered 1 year(s) ago

What is hydrocarbon ? explain. Write 5 difference between saturated and unsaturated hydrocarbon .

Hydrocarbons:
All the carbon compounds which contain just carbon and hydrogen are called hydrocarbons.

Difference between saturated and unsaturated hydrocarbons:

Sa...

Asked by Jayasree

Dec 6

  • 3 Answers
  • 0 Like
  • 26808 Views
Syeda answered 1 year(s) ago

What is power alcohol? How it is differ from absolute alcohol?

 Answer.

Mixture of alcohol and petrol in 20: 80 ratio is called power alcohol.In general it is used in stoves and spirit lamps. Where as absolute alcohol is 100% alcohol.

  • 2 Answers
  • 1 Like
  • 24791 Views
Syeda answered 1 year(s) ago

is there any difference between valency and valence electrons?

Answer.

Yes. Valancy of an element is the combining capacity. Valance electrons are the number of electrons present in the last shell or energy level of an atom.       

Asked by Priya

Oct 19

  • 6 Answers
  • 1 Like
  • 23905 Views
Satyanarayana answered 8 year(s) , 7 month(s) ago

Esterification reaction

Define esterification with an example?

Ans: The reaction between Acid and an Alcohol to produce ester as the product is called Esterification reaction. During this reaction a molecule of water is eli

...

Asked by Manikya

Nov 28

  • 1 Answer
  • 3 Likes
  • 23210 Views
Agam answered 1 year(s) , 10 month(s) ago

why is diamond called bad conductor of heat and electricity

Diamond is a bad conductor of electricity but good conductor of heat. Electricity is conducted in a crystal by electrons that are relatively free. But in diamond, each carbon atom is covalently bonded with f

...

Asked by Sandeep

Feb 25

  • 4 Answers
  • 0 Like
  • 19885 Views
Satyanarayana answered 4 year(s) , 7 month(s) ago

IUPAC name for CH3COCH2CH3

Ans: CH 3 COCH 2 CH 3  : <...

Asked by Affrasul

Nov 5

  • 2 Answers
  • 2 Likes
  • 19076 Views
Agam answered 1 year(s) , 10 month(s) ago

Advantages and disadvantages of detergents

Advantages of detergents

1) Unlike soaps, detergents can work in hard water.

2) They also have a stronger cleansing action than soap.

Disadvantages of detergent

1) The major d

...

Asked by Rohit

Mar 8

  • 2 Answers
  • 0 Like
  • 17993 Views
Swathi answered 4 year(s) , 6 month(s) ago

what are the differences between ionic and covalent bonds?

Differences between ionic and covalent bonds:  Ionic bonds Covalent bonds  Ionic bond is formed by the transfer of electrons from one atom to another atom. It is also known as electrovalen...

Asked by Harsha

Dec 11

  • 1 Answer
  • 0 Like
  • 16810 Views
Syeda answered 1 year(s) ago

Expalin the uses of common hydrocarbons in our daily life?

Answer.

Some common hydrocarbons and their uses:

Name
Uses
Methane
It is used as a fuel in e
...

Asked by Swathi

Jan 9

  • 2 Answers
  • 0 Like
  • 16332 Views
Syeda answered 1 year(s) ago

whats the difference between cyclic alicyclic and aromatic hydrocarbons

Answer.

Alicyclic hydrocarbons are those compounds which contain ring of 3 or more carbon atoms which resemble aliphatic (acyclic) hydrocarbons in their properties. Like aliphatic hydrocarbons th...

Asked by Asma

Dec 25

  • 2 Answers
  • 0 Like
  • 14319 Views
Swathi answered 4 year(s) , 6 month(s) ago

Structural diagram of isomers of hexane.

The existence of two or more compounds with the same molecular formula but different properties is known as isomerism .

The isomers of hexane are,

Asked by David

Dec 10

  • 1 Answer
  • 0 Like
  • 13619 Views
Swathi answered 4 year(s) , 5 month(s) ago

Why Methane is Called "Marsh Gas"?

Methane is called as Marsh Gas. Because it is produced when vegetation decomposes naturally within some geographical marshes, swamps, and bogs. The main process for the production of methane is anaerobic dig

...

Asked by Swathi

Jan 9

  • 2 Answers
  • 1 Like
  • 13288 Views
Vhansashree commented 5 year(s) , 5 month(s) ago

Draw the structure of butanone and hexanal ?

Ans: Butanone:
It is a Ketone. It contains four carbon atoms.

Hexanal:
It is an aldehyde. It contains six carbon atoms.

Asked by Aravind

Dec 17

  • 1 Answer
  • 0 Like
  • 12555 Views
Satyanarayana answered 5 year(s) , 8 month(s) ago

Give a chemical test to distinguish between Ethane and ethane.

  Ans: Question was not clear. Ethane & ethane - (C 2H 6) is nothing but same
If you mean difference between ethane (alkane) and ethene (alkene). Then, addition...

Asked by Narasimha

Oct 7

  • 1 Answer
  • 1 Like
  • 12106 Views
Like NextGurukul? Also explore our advanced self-learning solution LearnNext
Offered for classes 6-12, LearnNext is a popular self-learning solution for students who strive for excellence
Explore
Animated Video
lessons
All India
Test Series
Interactive Video
Experiments
Best-in class
books

Join India's most happening

Educational community