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Paper 1 | Objectives | 49 Questions
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Paper 1 | Objectives
Christian Religious Knowledge/Education/Studies (CRS/CRK/CRE)
Critical Thinking And Practical Reasoning
Which of the following substances is a mixture?
A. Sulphur powder
C. Distilled water
A balanced chemical equation obeys the law of?
A. conservation of mass
B. difinite proportions
C. multiple proportions
D. conservation of energy
How many moles of oxygen molecules would be produced from the decomposition of 2.50 moles of potassium trioxochlorate (V)?
For iodine crystals to sublime on heating, the molecules must acquire energy that is?
A. less than the forces odf attraction in the solid
B. equal to the forces of attraction in th solid
C. necessary to melt the solid
D. greater than the forces of attraction in both the solid and the liquid phases
An element, E, has the electronic configuration 1s22s22p63s2p3. The reaction of E with a halogen X can give?
A. EX3 and EX5
B. EX3 only
C. EX5 only
D. EX2 and EX3
Two atoms represented as U and U are?
As the difference in electronegativity between bonded atoms increases, polarity of the bond?
C. remains unchanged
D. reduces to zero
Which group of elements forms hydrides that are pyramidal in structure?
Water has a rather high boiling point despite its low molecular mass because of the presence of?
A. hydrogen bonding
B. covalent bonding
C. ionic bonding
D. metallic bonding
Argon is used in gas-filled electric lamp because it helps to?
A. prevent the reduction of the lamp fillaments
B. prevent oxidation of the lamp fillaments
C. make the lamp fillament glow brightly
D. keep the atmosphere in the lamp inert
Preview displays only 10 out of the 49 Questions