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Chemistry

Chemistry
The enzyme that converts glucose to ethyl alcohol is :

Maltase
Invertase
Diastase
Zymase

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Chemistry
Yellow Cake' an item of smuggling across border is

Unreformed gold
A crude from of cocaine
Uranium oxide
A crude from of heroin

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Chemistry
Ultraviolet radiation striking the earth is due to the depletion of

Ozone
Oxygen
Carbon monoxide
Carbon dioxide

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Chemistry
PH scale ranges from

0 – 14
8 – 14
None
0 – 7

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Chemistry
Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?

China, India, European Union, USA
USA, India, China, European Union
European Union, China, USA, India
China, USA, European Union, India

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Chemistry
Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ?

Alkalinity
Eutrophication
Acidity
Hardness

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