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Chemistry

Chemistry
Methanoic and ethanoic acids can be distinguished by the action of

NaOH
NaHCO3
SOCl2
Tollen's reagent

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Chemistry
When formaldehyde and potassium hydroxide are heated, we get

Methane
Acetylene
Ethyl formate
Methyl alcohol

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Chemistry
The ionic radii of N3-, O2-, F- and Na+ follows the order

O2- > F- > Na+ > N3-
Na+ > O2- > N3- > F-
N3- > Na+ > O2- > F-
N3- > O2- > F- > Na+

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Chemistry
Diamonds are glittering and attractive because light incident on them undergoes

Multiple internal reflections
Multiple surface reflections
Hundred percent transmission
Highest refraction

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Chemistry
The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called :

Vulcanization
Alloy formation
Zinc plating
Galvanization

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Chemistry
The pH of lemon juice is expected to be

More than 7
Equal to 7
Less than 7
Nothing can be predicted

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