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NEET Chemistry > Surface chemistry > Flashcards

Surface chemistry Flashcards

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1
Q

examples of O/W

A

milk and vanishing cream

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2
Q

emulsifying agent for O/W

A

proteins, gums, natural and synthetic soap

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3
Q

examples of W/O

A

butter, cream

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4
Q

emulsifying agent for W/O

A

heavy metal salts of fatty acids, lampblack, long chain alcohols

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5
Q

solid in solid

A

Solid sol

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6
Q

gas in solid

A

Solid sol

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7
Q

solid in gas

A

aerosol

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8
Q

liquid in gas

A

aerosol

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9
Q

solid in liquid

A

sol

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10
Q

Liquid in solid

A

gel

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11
Q

gas in liquid

A

foam

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12
Q

liquid in liquid

A

emulsion

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13
Q

coloured glasses and gemstones are examples of

A

solid in solid (solid sol)

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14
Q

Pumice stone, foam, rubber are examples of

A

Gas in solid(solid sol)

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15
Q

smoke, dust are examples of

A

solid in gas(aerosol)

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16
Q

fog, mist, cloud, insecticide are examples of

A

Liquid in gas(aerosol)

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17
Q

paints and cell fluids are examples of

A

Solid in liquid (sol)

18
Q

Cheese, jellies are examples of

A

Liquid in solid (gel)

19
Q

Froth, whipped cream, soap lather are examples of

A

gas in liquid (foam)

20
Q

Milk, hair cream, butter are examples of

A

Liquid in liquid (emulsion)

21
Q

CO with 3H2 and Ni are examples of

A

Methane (CH4)

22
Q

CO with 2H2 and Cu or ZnO+Cr2O3 catalyst gives

A

Methanol(CH3OH)

23
Q

CO with H2 and Cu catalyst gives

A

Formaldehyde (HCHO)

24
Q

Which enzyme converts sucrose to glucose and fructose

A

Invertase

25
Q

Which enzyme converts glucose to ethyl alcohol and CO2

A

Zymase

26
Q

Which enzyme converts starch to maltose

A

Diastase

27
Q

Which enzyme converts maltose to glucose

A

Maltase

28
Q

Which enzyme converts urea to ammonia and CO2

A

Urease

29
Q

Which enzyme converts proteins to amino acids?

A

Pepsin

30
Q

Which enzyme converts milk to curd

A

Lacto bacilli

31
Q

Source for Invertase, Zymase, Maltase

A

Yeast

32
Q

Source of Diastase

A

Malt

33
Q

source of Urease

A

Soyabean

34
Q

Hydrated metallic oxides are

A

positively charged sol

35
Q

Basic dyes like methylene blue are

A

positively charged sol

36
Q

Haemoglobin is

A

positively charged sol

37
Q

Oxides are

A

positively charged sol

38
Q

Metallic sulphides are

A

Negatively charged sol

39
Q

Metals are

A

Negatively charged sol

40
Q

Acid dyes like eosin, Congo red are

A

Negatively charged sol

41
Q

Starch, gum, clay, charcoal, gelatin

A

Negatively charged sol

NEET Chemistry (14 decks)

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