Chemistry - Sulphuric Acid

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Sulphuric acid points to learn 💯

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Basicity of Sulphuric Acid?

2 (Two)

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Standard preparation formula of Sulphuric acid?

S + 6HNO3 > SO2 + 2H2O + 6NO2

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Steps of Contact Process

1> Produce SO2
2> Oxidation of SO2 to SO3
3> Absorption of SO3

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Conditions for SO2 to SO3 oxidation?

  1. Low temperature (450 C)

  2. Pressure 200atm

  3. Vanadium pentoxide preferred over Platinum

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Why is V2O5 preferred?

  1. Cost effective

  2. Less chance of arsenic poisoning

  3. Higher catalytic efficiency

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What is H2S2O7 called?

Oleum.

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Physical properties of H2SO4

  1. Colorless

  2. Odorless

  3. Heavier than water.

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Acidic properties of H2SO4

  1. Oxidising agent

  2. dehydrating agent

  3. non-volatile

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How to dilute conc. H2SO4

add conc. H2SO4 slowly to water, with constant stirring.

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