Chemistry 2009 Neco Past Questions and Answers

Question 11 :

• NECO 2009

The Ideal Gas Law is expressed mathematically as ____________

A. P1 /T1 = P2/T2
B. P1/V1 = P2V2
C. PV =nRT
D. PV =KT
E. V1/T1 = V2/T2

Question 12 :

• NECO 2009

Non-polar molecules are held together by ____________

A. Co-ordinate bond
B. Covalent bond
C. Electromagnetic force
D. Hydrogen bond
E. Van der Waals forces

Question 13 :

• NECO 2009

Which of the following salt solutions will have a pH greater than 7?

A. NaCl
B. NaHSO₄
C. Na₂CO₄
D. Na₂SO₄
E. MgCl₂

Question 14 :

• NECO 2009

The relationship between equilibrium constant and free energy change is represented as ____________

A. δ G ° =-nFE °
B. δG °-RT ln K
C. δ G °= + RT In k
D. δG ° = δH – T S
E. H=TδS

Question 15 :

• NECO 2009

Which of the following is a solid at room temperature?

A. Argon
B. Bromine
C. Chlorine
D. Fluorine
E. Iodine