Previous Years Science Questions for IB AICO 2017:
Q1. Bone matrix is rich in
(a) fluoride and calcium
(b) calcium and phosphorus
(c) calcium and potassium
(d) phosphorus and potassium
Q2. Which one among the following completes the given statement correctly?
In digestive system of living organisms
(a) glucose is broken down into glycerol
(b) glucose is converted into glycogen
(c) glucose is broken down into carbon dioxide and water
(d) proteins are broken down into amino acids
Q3. Biological catalysts in living organisms are known as
(a) hormones
(b) vitamins
(c) steroids
(d) enzymes
Q4. Which one among the following water-borne diseases is not caused by bacteria?
(a) Cholera
(b) Hepatitis A
(c) Bacillary dysentery
(d) Typhoid
Q5. In chemical terms, what are alums used for purifying water for drinking purposes?
(a) Hydrated chlorides
(b) Double nitrate
(c) Double sulphates
(d) Nitrates of aluminium
Q6. Meson was discovered by
(a) Powell
(b) Seaburg
(c) Anderson
(d) Yukawa
Q7. Which one of the following is correct?
Lightning is formed, when
(a) similar charges of electricity rush towards each other and then get repelled
(b) clouds strike against impurities in air and friction burns up these impurities
(c) strong opposite charges in different clouds break down the resistance offered by intervening air
(d) water vapour produces electricity in the clouds
Q8. Which of the following electromagnetic wave has the longest wavelength?
(a) Infrared rays
(b) Gamma rays
(c) Light rays
(d) Ultra-violet rays
Q9. Which one of the following is not a constituent of cell membrane?
(a) Cholesterol
(b) Glycolipids
(c) Proline
(d) Phospholipids
Q10. Indane gas is a mixture of
(a) butane and hydrogen
(b) butane and oxygen
(c) butane and propane
(d) methane and oxygen
Answers
1-b
2-d
3-d
4-b
5-c
6-d
7-c
8-a
9-c
10-c
- http://www.examguruadda.in/2017/10/previous-years-science-questions-for-ib.html
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