Yo Yo Honey Singh
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- Category: History: Russian
- Date Submitted: 11/24/2012 03:25 AM
- Pages: 2
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Chemistry project
Prepared By
Nayeem Khan
Class 12th B
ROLl NO-22
CERTIFICATE
This is to certify that Mr. Nayeem Khan has satisfactory complete all the needs of this project....
Under the supervision of ____________ and lab assistance Sh. Bhim Singh..
teachers name
(chemistry department)
Dr.R.P.S. Vidalaya
New Delhi 04
TEST FOR PRESENCE OF
NICKEL IN CHOCOLATES
NICKEL
Nickel is silvey white hard malleable and dutile metal. it is of the iron group and it takes on a high polish. It is a fairly good conductor of heat and electricity. in its familiar compounds nickel is bivalent, although it assumes other valencies. It forms a number of complex compounds.
Most nickel compounds are blue or green. Nickel dissolves slowly in dilute acids but like iron becomes passive when treated with nitric acid. Finely divided nickel absorbs hydrogen.
HEALTH EFFECTS OF NICKEL
Nickel is a compound that occurs that occurs in the enviroment only at very low levels HUMANS use nickel for many diffirent application.the most common application of nickel is the use as an ingredients of steal and other metal produts .It can be found in cmmon metal produts such as jewellery..
Foodstuffs naturally contain small amount of nickel.Choclate and fats are known to contains severly high quantites .nickel uptake will boost when people eat large quantites of vegetable from polluted soils.Plants are known to accumlate nickel and as a result the nickel uptake from vegetables will be eminent.smokers have a higher nickel uptake from vegetables will be eminent.Smokers have a higher nickel uptale from vegetables will be eminent.Smokers have a higher nickel uptake through their lungs Finally , nickel can be found in detergents.......
Prepared By
Nayeem Khan
Class 12th B
ROLl NO-22
CERTIFICATE
This is to certify that Mr. Nayeem Khan has satisfactory complete all the needs of this project....
Under the supervision of ____________ and lab assistance Sh. Bhim Singh..
teachers name
(chemistry department)
Dr.R.P.S. Vidalaya
New Delhi 04
TEST FOR PRESENCE OF
NICKEL IN CHOCOLATES
NICKEL
Nickel is silvey white hard malleable and dutile metal. it is of the iron group and it takes on a high polish. It is a fairly good conductor of heat and electricity. in its familiar compounds nickel is bivalent, although it assumes other valencies. It forms a number of complex compounds.
Most nickel compounds are blue or green. Nickel dissolves slowly in dilute acids but like iron becomes passive when treated with nitric acid. Finely divided nickel absorbs hydrogen.
HEALTH EFFECTS OF NICKEL
Nickel is a compound that occurs that occurs in the enviroment only at very low levels HUMANS use nickel for many diffirent application.the most common application of nickel is the use as an ingredients of steal and other metal produts .It can be found in cmmon metal produts such as jewellery..
Foodstuffs naturally contain small amount of nickel.Choclate and fats are known to contains severly high quantites .nickel uptake will boost when people eat large quantites of vegetable from polluted soils.Plants are known to accumlate nickel and as a result the nickel uptake from vegetables will be eminent.smokers have a higher nickel uptake from vegetables will be eminent.Smokers have a higher nickel uptale from vegetables will be eminent.Smokers have a higher nickel uptake through their lungs Finally , nickel can be found in detergents.......