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Chemistry

Chemistry
Which one of the following is an example of a gel ?

Milk
Cheese
Shaving cream
Face cream

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Chemistry
Entropy of Universe is always

Constant
Increasing
Zero
Decreasing

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Chemistry
The gas used for artificial ripening of green fruit is

ethylene
carbon dioxide
acetylene
ethane

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Chemistry
When a lead storage battery is discharged,

SO2 is evolved
Sulphuric acid is consumed
Lead is formed
Lead sulphate is consumed

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Chemistry
Ozone layer is present in

Exosphere
Ionosphere
Stratosphere
Troposphere

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Chemistry
Magnetite is

Fe2O3
FeCO3
Fe3O4
2Fe2O3. 3H2O

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