Neco Chemistry Past Questions and Answers

Question 1:

• NECO 2001

White is NOT a property of metals?

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

Question 2:

• NECO 2001

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

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

Question 3:

• NECO 2001

Which compound will have the lowest boiling point?

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

Question 4:

• NECO 2001

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

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

Question 5:

• NECO 2001

The Kinetic theory can NOT be used to explain

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