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Chemistry

Chemistry
The enzyme that converts glucose to ethyl alcohol is :

Zymase
Diastase
Maltase
Invertase

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Chemistry
The most abundant inert gas in the atmosphere is

Krypton
Helium
Neon
Argon

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Chemistry
Concentration of a material which is lethal to 50% animal is called

ADI
LD50
NOAEL
LC50

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Chemistry
At room temperature, the metal that remains liquid is:

Platinum
Lead
Mercury
Zinc

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

Neon
Oxygen
Helium
Argon

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Chemistry
Oxygen which is vital for life is a product of photosynthesis and comes from

Carbon dioxide
Carbonates from soil
Oxides of mineral elements
Water

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