Wednesday, 14 March 2018

Science Quiz 42

Science Quiz 42



1. Who introduced the term "mutation"?
Hugo de Vries
Gregor Mendel
Charles Darwin
Richard Dawkins

2. Which metal was produced for the first time in 1825 by Hans Christian Orsted?
Copper
Aluminium
Silver
Tin

3. Albinism is caused by the deficiency of which enzyme?
Tyrosinase
Thiaminase
Lysozyme
Myeloperoxidase

4. Aqua regia which can dissolve the noble metals gold and platinum is a mixture of
Nitric acid and Sulphuric Acid
Acetic acid and Hydrochloric acid
Hydrochloric acid and Nitric acid
Sulphuric Acid and Acetic acid

5. With which one of the following the Wohlwill process associated?
Silver
Gold
Platinum
Iron

6. Dry ice is the solid form of
Carbon monoxide
Potassium nitrate
Carbon dioxide
Sulphur dioxide

7. What is known as epsum salt?
Potassium sulphate
Sodium sulphate
Aluminium sulphate
Magnesium sulphate

8. When was the present day mobile phone invented?
1971
1973
1975
1978

9. Which company produced the first mobile phone?
Nokia
Samsung
Apple
Motorola

10. John J Loud was an American inventor who is known for inventing which one of the following?
Ballpoint Pen
Fountain Pen
Gel Pen
Felt-tipped Marker Pen

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