Chemistry Investigatory Project Class 12_orig

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  • 8/17/2019 Chemistry Investigatory Project Class 12_orig




    Name-Debjani Das


      roll no-

    Hem Seela Mo!el S"ool

  • 8/17/2019 Chemistry Investigatory Project Class 12_orig


  • 8/17/2019 Chemistry Investigatory Project Class 12_orig



    This to certify that “Debjani Das” of class XII bearing 

    roll no- who is going to appear for AISSCE-2!" 

    has s#ccessf#lly co$plete% all the practicals an% projects in

    Che$istry %#ring the session 2!&-2!" as per the prescribe% 

     syllab#s of C'('S'E') *ew Delhi'

      'ignature of (xaminer)***************** 


  • 8/17/2019 Chemistry Investigatory Project Class 12_orig





  • 8/17/2019 Chemistry Investigatory Project Class 12_orig



  • 8/17/2019 Chemistry Investigatory Project Class 12_orig




    The coconut tree +Cocos n#cifera. is a member of the family 

    -recaceae +palm family.It is the only accepted species in the

    genus Cocos. he term coconut can refer to the entire coconut

     palm, the seed, or the fruit, which, botanically, is a drupe, not a

    nut. he spelling cocoanut is an archaic form of the word.


     heterm is derived from the #&th%century Portuguese and 'panish

    word coco meaning 0head0 or 0skull0, from the three

    indentations on the coconut shell that resemble facial features.

    he coconut is known for its great versatility as seen in the

    many uses of its different parts and found throughout the tropics

    and subtropics.1$/ Coconuts are part of the daily diets of many

     people. Coconuts are different from any other fruits because

    they contain a large 2uantity of 0water0 and when immature they

    are known as tender%nuts or jelly%nuts and may be harvested for

    drinking. 3hen mature, they still contain some water and can be

    used as seednuts or processed to give oil from the kernel,

    charcoal from the hard shell and coir  from the fibrous husk . he

    endosperm is initially in its nuclear phase suspended within the coconut water. -s development continues, cellular layers of

    endosperm deposit along the walls of the coconut, becoming the

    edible coconut 0flesh0.1&/ 3hen dried, the coconut flesh is called

    copra. he oil and milk  derived from it are commonly used in

  • 8/17/2019 Chemistry Investigatory Project Class 12_orig


    cooking and frying4 coconut oil is also widely used in soaps and

    cosmetics. he clear li2uid coconut water  within is potable. he

    husks and leaves can be used as material to make a variety of

     products for furnishing and decorating. he coconut also has cultural and religious significance in many societies that use it. 1cita

  • 8/17/2019 Chemistry Investigatory Project Class 12_orig


    Coconut water 

    Coconut water is the clear li2uid inside young green

    coconuts +fruits of the coconut palm. In early development, it serves as a suspension for the endosperm of the coconut during

    the nuclear phase of development. -s growth continues, the

    endosperm matures into its cellular phase and deposits into the

    rind of the coconut meat. Coconut water has long been a popular 

    drink in the tropical countries where it is available fresh, canned,

    or bottled. Coconuts for drinking are served fresh, chilled or

     packaged in many places. hey are often sold by street vendors 

    who cut them open with machetes or similar implements in front

    of customers. Processed coconut water for retail can be found in

    ordinary cans, etra Paks5, or plastic bottles, sometimes with

    coconut pulp or coconut jelly included. Coconut water can be

    fermented to produce coconut vinegar . It is also used to make

    nata %e coco, a jelly%like food. 6ottled coconut water has a shell life of !7 months. In recent years, coconut water has been

    marketed as a natural energy or sports drink  having low levels of 

    fat, carbohydrates, and calories, and significant electrolyte 

    content. Marketers have also promoted coconut water for having

    low levels of fat, carbohydrates, and calories. 8owever,

    marketing claims attributing tremendous health benefits to coconut water are largely unfounded. 9nless the coconut has

     been damaged, it is likely sterile. here is a single documented

    case where coconut water has been used as an intravenous

    hydration fluid when medical saline was unavailable. -lthough

  • 8/17/2019 Chemistry Investigatory Project Class 12_orig


    this is not generally recommended by most physicians today, it

    was a common practice during the :hmer ;ouge regime in

    Cambodia from #

  • 8/17/2019 Chemistry Investigatory Project Class 12_orig



    Dresh coconuts are typically harvested from the tree while they

    are green. - hole may be bored into the coconut to provide access to the li2uid and meat. In young coconuts, the li2uid and

    air may be under some pressure and may spray slightly when the

    inner husk is first penetrated. Coconuts which have fallen to the

    ground are susceptible to rot and damage from insects or


    M(IC-E 9'(

    It is said , albeit 2uite incorrectly , that coconut water is identical

    to human plasma and can be injected directly into the human

     bloodstream. he story has its origin from 3orld 3ar II where

    6ritish and Fapanese patients were given coconut water

    intravenously in an emergency because saline was unavailable.

    1  'ince then, this rehydration techni2ue has been used only for short%term emergency situations in remote locations where

     plasma is not available.

    -lthough substituting coconut water for saline is not