Metode ločevanja AI Flashcards

1
Q

What is the purpose of separation methods in chemistry?

A

To separate mixtures into their individual components.

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2
Q

True or False: Filtration is a physical method of separating mixtures based on particle size.

A

True

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3
Q

What is the principle behind distillation?

A

Separating components based on differences in boiling points.

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4
Q

Which separation method is used to separate dissolved solids from a liquid?

A

Evaporation

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5
Q

What is chromatography used for in chemistry?

A

Separating mixtures based on differences in solubility and affinity for a stationary phase.

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6
Q

What is the key difference between fractional distillation and simple distillation?

A

Fractional distillation allows for separation of components with closer boiling points.

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7
Q

Which separation method is effective for separating components with different densities?

A

Centrifugation

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8
Q

What is the purpose of extraction in chemistry?

A

To separate a compound from a mixture using a solvent.

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9
Q

True or False: Crystallization is a separation method based on differences in melting points.

A

False

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10
Q

What is the role of a separating funnel in chemistry?

A

To separate immiscible liquids based on differences in density.

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11
Q

What is the main principle behind magnetism as a separation method?

A

Separating magnetic materials from non-magnetic materials.

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12
Q

Which technique is commonly used in forensic analysis to separate complex mixtures?

A

Gas chromatography

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13
Q

What is the purpose of sieving in separation methods?

A

To separate particles based on size.

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14
Q

True or False: Decantation is a separation method based on differences in solubility.

A

False

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15
Q

What is the primary objective of sublimation in chemistry?

A

To separate a solid directly into a gas.

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16
Q

Which separation method is based on differences in volatility?

A

Fractional distillation

17
Q

What is the significance of paper chromatography in analytical chemistry?

A

Separating and identifying components in a mixture.

18
Q

Which separation method is used to separate components based on differences in solubility in a solvent?

A

Extraction

19
Q

True or False: Sublimation is a separation method based on differences in boiling points.

A

False

20
Q

What is the purpose of recrystallization in chemistry?

A

To purify a solid compound by dissolving and re-crystallizing it.