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Chemistry Past Questions and Answers

Neco Chemistry Questions

Question 1:

White is NOT a property of metals?

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A Ductile:
B Malleable
C Conduct heat and electricity
D Have many oxidation states
E High melting points anti boiling points

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Question 2:

The Atomic theory model which explains that electrons in an atom revolve round quantized energy levels is attributed to ____________

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A Becquerel.
B Bohr.
C De Broglie.
D Rutherford.
E Thompson.

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Question 3:

Which compound will have the lowest boiling point?

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A CH₃OH
B CH₃COOH
C CH₃CHOH
D C₄H₁₀
E (CH₃)₃CH

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Question 4:

The molar mass of a compound X is 56. its empirical formula is CH2. X is ____________

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A Butene.
B Butyne.
C Ethene.
D Propene.
E Propyne

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Question 5:

The Kinetic theory can NOT be used to explain

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A Allotropy.
B Brownian movement.
C Diffusion.
D Tyndal effect.
E Vaporization.

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