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Chemistry
UTME / JAMB 2010
Chemical Combinations & Bonding
Solution
How many unpaired electron(s) are there in the nitrogen sub-levels?
A
3
B
2
C
1
D
none
medium Difficulty
Study Explanation
Chemistry
UTME / JAMB 2010
Chemical Combinations & Bonding
Solution
The maximum number of electrons in the L shell of an atom is?
A
2
B
8
C
18
D
32
medium Difficulty
Study Explanation
Chemistry
UTME / JAMB 1999
Chemical Combinations & Bonding
Solution
X + Y → Z. The rate equation for the chemical reaction above is \(\frac{-Δx}{Δt}\) = K[X]\(^2\)[Y].
The overall order of the reaction is?
A
0.0
B
1.0
C
2.0
D
3.0
medium Difficulty
Study Explanation