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Biology > chemistry > Flashcards

chemistry Flashcards

1
Q

chromium

A

52

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1
Q

zinc

A

63

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2
Q

iron

A

56

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3
Q

bromine

A

80

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4
Q

position of atoms in molecular crystals determined by

A

xray analysis

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5
Q

Bohrs model

A

electron at a specifc distance
and a specific velocity from nucleus

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6
Q

Heinsberg uncertainty principal

A

impossible to determine electron momentum and position

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7
Q

hardest solid

A

covalent

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8
Q

nacl and diamond

A

cubic

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9
Q

arheinus equation is an equation of

A

straight line

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10
Q

platinum foil in SHE acts as?

A

catalyst

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11
Q

Cu+2e

A

+0.34

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12
Q

more ionising potential

A

less ability to form cations

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13
Q

interstitial compounds formed when

A

transition elements react w C, H, N, O, B

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14
Q

Coinage metals; Group IB

A

gold silver copper

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15
Q

water waves

A

longitudinal and transverse

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16
Q

in f modulation

A

amplitude doesnt change

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17
Q

perrie currie and marrie curie

A

isolated radium

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18
Q

process of effusioin best explained by

A

grahams law

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19
Q

C in steel

A

0.2-0.7%

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20
Q

extent of unsaturation expressed by its

A

iodine no

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21
Q

diamond

A

sharp mp

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22
Q

Hb made up of

A

10k atoms

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23
Q

in isotopic analysis pressure of vapours is around

A

10-7 torr

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24
Q

benzoic acid

A

can be purified by sublimation

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25
Q

in process of respiration

A

application of daltons law

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26
Q

acronitryl

A

CH2=CH-CN

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27
Q

Manufacture of plastics

A

carbonic acid

28
Q

micronutrients required

A

6-200g per acre

29
Q

incarnation can reduce the vol of h20 by

30
Q

chromyl test

A

confirms presence of chlorine

31
Q

L-asparaginase

A

treatment of blood cancer

32
Q

separation and purification of carbonyl and non carbonyl compounds

33
Q

radon

A

alpha gas emitter

34
Q

Catalyst for Catalytic cracking

A

SiO2 & Al2O3

35
Q

non stick lining of pans

A

tetrafluoroethane

36
Q

mass of 1g of e-

A

9.8x10”28

37
Q

gas produced from landfills of waste

38
Q

human blood ph

39
Q

ionic radii of flouride

40
Q

anhydride of sulfuric acid

A

sulfur (III) oxide

41
Q

picric acid

A

1,3,6 trinitrophenol

42
Q

Grahams Law

A

the rate of effusion a gas is inversely proportional to the square root of its molar mass

43
Q

ratio of sigma to pi bonds in benzene

44
Q

freon

A

refrigerant

45
Q

neopentyl chlorides belong to

A

primary alkyl hallides

46
Q

phenol and formaldehyde forms

47
Q

effusion vs diffusion

A

Effusion, in simple terms, is the ability of gas to travel through a small opening. Diffusion is the ability of gases to mix with each other, usually without a barrier

48
Q

coinage metals

49
Q

carbon forms interstitial compounds

50
Q

AL extracted by

51
Q

jupon burning in air normal oxide formed by

52
Q

covalent radius of H2

53
Q

glucose to ethanol

A

zymase enzyme

54
Q

optimum temp for fermentation

A

25-35 degree celcius

55
Q

principal quantum number n represents

A

size of an orbital, energy and location of electron

56
Q

abnormal trend in IE of

A

group 3A & 6A

57
Q

H bond in HF

A

zigzag manner

58
Q

in habers process

A

35% ammonia at equilibrium

59
Q

friedrich reinitzer

A

discovered liquid crystal

60
Q

3rd order reactions

A

half life is inversely proportional to square of concentration

61
Q

Enthalpy of solution of NH4Cl

62
Q

alkyl halides give

A

beta elimination reactions

63
Q

daltons theory

A

atom cannot be further divided

64
Q

alkaline phosphatase

A

raised in rickets

65
Q

BP of acetic acid

66
Q

zinc oxide and chromium oxide is used in

A

industrial prep of CH3OH

Biology (8 decks)

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