Jamb Chemistry 2003 Past Questions and Answers

Question 6:

• JAMB 2003

3Cu + pHNO₃ →3Cu(NO)₂ + 4H₂ O + xNO
In the equation above, the values of p and x respectively are

A. 1 and 3
B. 2 and 3
C. 6 and 2
D. 8 and 2

Question 7:

• JAMB 2003

Neutral atoms of neon with atomic number 10 have the same number of electron as

A. O²⁺
B. Ca²⁺
C. K⁺
D. Mg²⁺

Question 8:

• JAMB 2003

The noble gases owe their inactivity to

A. Octet configuration
B. Cyclic shape
C. Hexagonal shape
D. Obtuse configuration

Question 9:

• JAMB 2003

According to the kinetic theory, an increase in temperature causes the kinetic energy of particles to

A. Decrease
B. Increase
C. Remain constant
D. Be zero

Question 10:

• JAMB 2003

I. H = 1s¹ II. N = 1s² 2s² p³ III. O = 1s² 2s² p⁴ IV. Zn = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰
From the above, which of the following pairs is like to be paramagnetic?

A. I and II
B. I and III
C. I and IV
D. III and IV