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Paper 1 | Objectives | 45 Questions
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Paper 1 | Objectives
The atoms of four elements are represented as 20Q, 16R, 10S and 8T Which of the elements would be unreactive?
Chlorine atom forms CI by
A. losing one electron
B. Sharing one electron
C. Donating lone pair of electrons
D. Gaining one electron
An element Z has a combining power of 3. Which of the following formulae is correct of its compounds?
C. Z 2O 3
Electrovalent compounds are characterized by
A. solubility in ethanol
B. high molar mass
C. high melting point
D. strong oxidizing ability
The type of chemical bond that exists between potassium and oxygen in potassium oxide is
Which of the following contains co-ordinate covalent bond?
B. CH 4
Elactrostatic force of attraction between sodium ion and halide ion is greatest in
Which of the following non-metals reacts most readily with metals?
A radioactive solid is best stored
A. under paraffin oil
B. under ultraviolet light
C. in a cool, dark cupboard
D. in a box lined with lead
Preview displays only 9 out of the 45 Questions