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Chemistry

Chemistry
The enzyme that converts glucose to ethyl alcohol is :

Zymase
Maltase
Diastase
Invertase

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Chemistry
Which of the following produces highest amount of energy upon oxidation?

Fat
Protein
An alkane
Glucose

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Chemistry
In addition to hydrogen, the other abundant element present on Sun’s surface is

Neon
Oxygen
Argon
Helium

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Chemistry
Maximum permissible concentration of total hardness in drinking water is

500
200
50
100

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Chemistry
Dry ice is the solid form of :

Air
Carbon di–oxide
Nitrogen
Water

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Chemistry
Which metal is the heaviest in periodic table among the following ?

Pt
Os
W
Pb

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