Paper 1 | Objectives | 38 Questions
WASSCE/WAEC MAY/JUNE
Year: 2010
Level: SHS
Time:
Type: Question Paper
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# | Question | Ans |
---|---|---|
1. |
Which of the following equations represents beta decay? A. \(\frac{14}{7}\)N + \(\frac{4}{2}\)He → \(\frac{8}{17}\)O + \(\frac{1}{1}\)H B. \(\frac{8238}{92}\)U → \(\frac{234}{90}\)Th + \(\frac{4}{2}\)He C. \(\frac{8238}{92}\)U → \(\frac{239}{93}\)Np + \(\frac{0}{-1}\)e D. \(\frac{13}{7}\)N + \(\frac{4}{2}\)He → \(\frac{16}{8}\)O + \(\frac{1}{1}\)H |
C |
2. |
The energy change which accompanies the addition of an electron to a gaseous atom is A. atomization B. electron affinity C. electronegativity D. ionization |
B |
3. |
Which of the following elements is a d-block element? A. Calcium B. lron C. Lithium D. Silicon |
B |
4. |
Which of the following statements about chlorine and iodine at room temperature is correct? A. Chlorine is gas and iodine is solid B. Chlorine is liquid and iodine is gas C. Chlorine and iodine are gases D. Chlorine is solid and iodine is liquid |
A |
5. |
If X is a group lll element, its oxide would be represented as A. X3O2 B. X3O C. X2O3 D. XO3 |
C |
6. |
Which of the following species correctly represented an ion of M with 13 protons and 10 electrons? A. 10M 3+ B. 10M 3- C. 13M 3+ D. 13M 3- |
C |
7. |
A solid substance with high melting and boiling points is likely to be a/an A. covalent compound B. dative covalent compound C. electrovalent compound D. non-metal |
C |
8. |
Which of the following molecules has a linear shape? A. CH4 B. CO 2 C. H2S D. NH 3 |
B |
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