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Neco Chemistry Past Questions and Answers

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Neco Chemistry Past Questions

Question 111:


Which of the following is a component of the car exhaust?

A. Aluminium
B. Calcium
C. Iron
D. Zinc
E. Lead


Question 112:


The molecular formula of ethylbutanoate is?

A. C[/sub]H[sub]5COOC26
B. C3H[/sub]COOC[sub]2H7
C. C3H7COOC3H7
D. C3H7COOC4H9
E. C3H7COOC2H5


Question 113:


The rate of a chemical reaction is NOT affected by one of these factors

A. Colour
B. Concentration
C. Presence of light
D. Surface area
E. Temperature


Question 114:


Pipe-borne water is usually chlorinated in order to ____________

A. Coagulate sediments in the water
B. Improve taste of the water
C. Kill harmful bacteria in the water
D. Make it pure
E. Remove the hardness in the water


Question 115:


The planet with the highest number of moon is ____________

A. Earth
B. Jupiter
C. Uranus
D. Pluto
E. Venus.






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