Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

lol > ChE day1 > Flashcards

ChE day1 Flashcards

1
Q

Process of breaking down a large isotope into smaller isotopes

A

nuclear fission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Author of octet rule

A

gilbert lewis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Iodine vapor forms iodine crystals when it touches a cold surface. What is the reverse of
the process being described?

A

sublimation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Notation on alkane containing Cl

A

Chloro

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q 
Given: Dodecane
I. Is it soluble in water?
II. Is it soluble in hexane?
III. Is it combustible?
IV. Is it solid, liquid or gas at room temp. & atmospheric conditions?
V. Is it denser than water?
A

no, yes, yes, liquid, less dense

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Description of a primary and a secondary cell

A

primary cell can be recharged (Ni-Cd)

secondary cell can not be reacharged (dry cell)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which layer of the atmosphere contains the ozone layer

A

stratosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of the ff has a higher heat of combustion on a gram per gram basis if Hf is 237 kj/mol and 532 kj/mol for methane and propane respectively

A

methane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How to differentiate alkane alkene and alkyne

A

reaction with Br2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which of the ff. has a larger ionic nucleus? Na+ or Na?

A

Na

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Particle with the same mass as proton.

A

Neutron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Arrange in increasing level of toxicity 1: heptachlor 2: dieldrum 3: DDT 4: Arsenic 5: Cr

A

4,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Polymer used in bullet proof vest

A

polymethylacrylate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

who discovered x-ray?

A

Wilhelm Conrad Roentgen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

other name for alkanes

A

paraffins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

other name for alkenes

A

olefins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

center of an atom

A

nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

blanket of pollutants

A

smog ( nitrogen oxides, sulphur oxides, ozone, smoke and other particulates)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Nearest layer of atmosphere from earth’s surface

A

troposhpere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

a method of sequencing amino acids in a peptide

A

edman degradation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

primary use of ethylene

A

ripening of fruits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

contaminants in the BTEx process

A

benzene, ethylbenzene, toluene and three isomers of xylene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Where does an enzyme capsaicin commonly found?

A

Capsicum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the other name of bulk temperature?

A

Mixing-cup temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
common method in the removal of fine particle in hot airstream common in cement production
Venturi Scrubber
26
method that Wohler do to break the vital force theory in nature
Heating of NH4Cl with AgCN to form Urea
27
Arrange the following substance in terms of increasing melting point: Palmitic, steric, oleic
oleic
28
common form of nitro-glycerol
Nitroglycerin (NG) (explosives)
29
Bonding of heteronucleus with unequal sharing of elecetrons
polar covalent
30
What is the most polar and least polar of the following functional groups: R-OH, R-NH3, R-COOH, C triple bond C and C-C
most polar: c-c | least polar: c triple bond c
31
range of melting point of saturated fatty acids
100-110C
32
range of melting point of unsaturated fatty acids
70-85C
33
What happen to the pH of carbonated drinks if it open in atmospheric condition?
decrease
34
What happen to the enthalpy content of the real gases when it is throttled at constant temperature
nothing
35
set of processes performed by a living being that allows them to interchange matter and energy with the environment
metabolism
36
disintegration of complex organic compounds to release energy
catabolism
37
arrangement of organic compounds from simpler compounds to store energy
anabolism
38
recognizes the important role of professionals in nation-building and, towards this end, promotes the sustained development of a reservoir of professionals whose competence has been determined by honest and credible licensure examinations and whose standards of professional service and practice are internationally recognized and considered world-class brought about the regulatory measures, programs and activities that foster professional growth and advancement
prc modernization act
39
Choose whether the following is/are representation of the nuclear fusion: The big bang theory, the radiant energy of the sun, the formation of deuterium/tritium.
the formation of deuterium/tritium
40
occurs when a previously stable material has been made radioactive by exposure to specific radiation
induced radioactivity
41
The phenomenon by which even light elements are made radioactive by artificial or induced methods
artificial radioactivity
42
two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles
Hydrogen Fusion Reaction
43
comprises cosmic radiation and the radiation arising from the decay of naturally occurring radionuclides
natural radioactivity
44
Is it possible to have a pH of 0?
no (0 pH is only possible in theory)
45
most penetrating radiation
gamma
46
what does citric and malic acid have in common?
both carboxylic acid?
47
is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation
radioactivity
48
who discovered radioactivity?
henri becquerel
49
who discovered vulcanized rubber
charles goodyear
50
how old is the earth?
4.543 billion years
51
a unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27 kg.
atomic mass unit
52
person behind carbon dating method
willard libby
53
which floar? balsa wood ethylne glycol, table salt, ethanol
balsa wood
54
fundamental class of reactions in which an electron rich nucleophile selectively bonds with or attacks the positive or partially positive charge of an atom or a group of atoms to replace a leaving group
nucleophilic substitution
55
where is the ozone layer found?
stratosphere
56
synthetic dye
canotenoid
57
At a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.
henry's law
58
process to obtain an IR spectrum of a solid
nujol mull process
59
sign convention of enthalpy during endothermic reaction
positive
60
position and the velocity of an object cannot both be measured exactly, at the same time, even in theory
heisenberg uncertainty principle
61
polymer used for printing and coating
Styrene acrylic ??
62
internal energy is compossed of all energy except: free energy, kinetic and potential energy, heat of fusion, enthalpy
enthalpy?

lol (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions