cameroon gce advanced level 2015 chemistry 1

cameroon gce advanced level 2015 chemistry 1

cameroon gce advanced level 2015 chemistry 1

Which one of the following processes is
exothermic?
15 ^O’)(’g()g)l–e>-0>(02 g) (g)
C O(g) + e —» 0 (g)
I) 0(g) —> O'(g)+ c
I
The graph below is part of a plot ol log
ionization energy against number ol eleclron ,
removed for element X.
8.
A
Gun powder burns with a lilac (purple) flame.
The metal in gunpowder that causes this
flame colour is?
A Sodium
B Caesium
C potassium
D calcium
Cli
rj
number of electrons removed
In which group of the periodic table is
element X found?
A I
• B II
C III
D IV
Which of the elements below exhibit the
“inert-pair effect”? *
A sulphur
B lead
C sodium
1) magnesium
3
The number and types of particles emitted in
the radioactive decay of 5725Mn to 23V is (arc )
A 2a-particles
B la-particle and lp-particle
C 2a-particles and 1(3-particle
D 2a-particles and 2p-particles
9.
Give the name of the reaction that occurs
when ethene reacts with aqueous bromine.
A Electrophilic addition
B Electrophilic substitution
C Nucleophilic addition
D Nucleophilic substitution
4.
10. Give the IUPAC name of the followin

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