|
Differentiate between soap and detergent
|
|
1
|
77337
|
September 21, 2016
|
|
Differentiate between saturated and unsaturated hydrocarbons
|
|
4
|
8737
|
February 8, 2019
|
|
Suggest a test to find the hardness of water and explain the procedure
|
|
1
|
3786
|
October 15, 2018
|
|
Do you know how the police detect whether suspected drivers have consumed alcohol or not?
|
|
0
|
1005
|
October 21, 2016
|
|
Can you see the oil
|
|
0
|
970
|
October 21, 2016
|
|
What is the action of soap particles on the greasy cloth?
|
|
0
|
1089
|
October 21, 2016
|
|
Why do sometimes cooking vessels get blackened on a gas or kerosene stove?
|
|
0
|
3265
|
October 21, 2016
|
|
Can carbon form bonds with the atoms of other elements?
|
|
0
|
315
|
October 21, 2016
|
|
Allotting completely one special branch in chemistry to compounds of only one element
|
|
1
|
447
|
October 21, 2016
|
|
How do you understand the markings (writings) of a pencil on a paper?
|
|
0
|
810
|
October 21, 2016
|
|
How these energetically unequal valence electrons form four equivalent cova¬lent bonds in methane molecule?
|
|
0
|
626
|
October 21, 2016
|
|
In methane ($CH _{ 4}$) molecule all four carbon - hydrogen bonds are identical and bond angle HCH is 109°28'. How can we explain this?
|
|
0
|
456
|
October 21, 2016
|
|
Define Hybridisation
|
|
0
|
370
|
October 21, 2016
|
|
Where this energy to excite electron comes from?
|
|
0
|
1623
|
October 21, 2016
|
|
Explain the four unpaired electrons in carbon atom through excited state
|
|
0
|
3540
|
October 21, 2016
|
|
Can carbon get helium configuration by losing four electrons from the outer shell?
|
|
0
|
1064
|
October 21, 2016
|
|
Which oil is recommended for cooking ? Why?
|
|
0
|
2352
|
October 21, 2016
|
|
Why we are advised not to use animal fats for cooking?
|
|
0
|
4177
|
October 21, 2016
|
|
Write an activity to show soap solution separates oil from water
|
|
0
|
1153
|
October 21, 2016
|
|
Write an activity to show esterification reactions
|
|
0
|
8602
|
October 21, 2016
|
|
How synthetic detergents are harmful for the environment?
|
|
0
|
1011
|
October 21, 2016
|
|
How ethanol useful in pharmaceutical industry?
|
|
0
|
301
|
October 21, 2016
|
|
How do you appreciate the role of Ethanol as a fuel?
|
|
0
|
1985
|
October 21, 2016
|
|
How do you appreciate the role of carbon in everyday life?
|
|
0
|
762
|
October 21, 2016
|
|
Explain about methanol (or) methyl alcohol
|
|
0
|
430
|
October 21, 2016
|
|
Explain about high refractive index of diamond
|
|
0
|
591
|
October 21, 2016
|
|
What is organic chemistry?
|
|
0
|
429
|
October 21, 2016
|
|
"Diamond is an extremely bad conductor of electricity". Why?
|
|
0
|
3336
|
October 21, 2016
|
|
Explain briefly about the structure of "Graphite"
|
|
0
|
673
|
October 21, 2016
|
|
Explain briefly about the structure of "Diamond"
|
|
0
|
1253
|
October 21, 2016
|
