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Chemistry

Chemistry
An example of replenishable energy source is–

Petroleum
Lignite
Coal
Biomass

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Chemistry
Peroxyacetyl nitrate is a

Plant hormone
Secondary pollutant
Acidic dye
Vitamin

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Chemistry
The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

1/3
1/8
1/6
1/4

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Chemistry
The common name of sodium bicarbonate is

Baking powder
Soda lime
Baking soda
Soda ash

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Chemistry
During fermentation of sugar, the compound which is always formed is :

Ethylene
Methyl Alcohol
Ethyl Alcohol
Acetic Acid

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Chemistry
What is the atomic number of mercury

63
80
32
41

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MORE MCQ ON Chemistry

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