A certain nucleus has 12 protons and 16 neutrons.Which one of the following statements about
the nucleus is NOT true?
3. Question | Social Studies
Difficulty faced at home and the hope of a better life in town BEST illustrate the effect of
4. Question | Biology
Which of the following substances contains the elements carbon, hydrogen, oxygen and
nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins
5. Question | Chemistry
If the relative atomic mass (RAM) = 1 for hydrogen and 16 for oxygen, the formula mass for
H2O2 is:
6. Question | Chemistry
The catalyst in the Haber Process is:
7. Question | Mathematics
The equation of the line which passes through the point (0 , -3) and has a gradient of 1/2 is
8. Question | Chemistry
All of these are alkenes EXCEPT for:
9. Question | Chemistry
A molecule of ethene can be described as all of these EXCEPT for:
10. Question | Mathematics
-7 - (-3) =
11. Question | Mathematics
Which of the following is the Highest Common Factor of 18, 24 and 36?
12. Question | Mathematics
The number 32747 written to 4 significant
figures is
13. Question | Chemistry
The number of atoms in this formula, H2SO4, is:
14. Question | Chemistry
Which one of the following gases is considerably heavier than air?
15. Question | Mathematics
$x is divided among three boys, Romon,
Deven and Adam, in the ratio 2 : 3 : 7,
respectively.
If Adam gets $28, what is the value of x ?
16. Question | Chemistry
Powders react faster than lumps because they have:
17. Question | Physics
Which one of the following statements about a voltmeter is NOT true?
18. Question | Integrated Science
Excretion is best defined as:
19. Question | Integrated Science
Tooth decay can be caused by:
20. Question | Mathematics
The water authority charges $20.00 per
month for the meter rent, $2.00 for the first
1 000 litres and $0.20 for each additional
100 litres. What is the total bill for 2400
litres used in one month?