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General Knowledge - Chemistry

@ : Home > General Knowledge > Chemistry > Section 1

Exercise

  • Section 1
"In the middle of difficulty lies opportunity."
- Albert Einstein
61. 

The most important ore of aluminium is
A. bauxiteB. magnetite
C. haematiteD. monazite
62. 

The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of
A. an addition reaction
B. a condensation reaction
C. an oxidation reaction
D. an elimination reaction
63. 

The number of electrons presents in H+ is
A. zeroB. one
C. twoD. three
64. 

The hottest part of the gas flame is known as
A. luminous zone
B. dark zone
C. blue zone
D. non-luminous zone
65. 

The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is
A. carbonB. hydrogen
C. oxygenD. nitrogen
66. 

The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is
A. chain isomerism
B. functional group isomerism
C. positional isomerism
D. metamerism

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