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DAY 1 > Objective Questions > Flashcards

Objective Questions Flashcards

1
Q

Number of carbon atoms in olvanil

A

C26H43NO3

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2
Q

Definition of ozonolysis

A

an organic reaction where the unsaturated bonds of alkenes, alkynes, or
azo compounds are cleaved with ozone.

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3
Q

Edman degradation

A

developed by Pehr Edman, is a method of sequencing amino acids in a
peptide.

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4
Q

Nearest layer of the atmosphere from the earths surface

A

troposphere

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5
Q

Chemical formula for 11-tetradecenyl acetate

A

C16H30O2

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6
Q

Common contaminant on BTEx process

A

benzene, toluene, ethylbenzene, and xylenes

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7
Q

What is the other name for bulk temperature

A

mixing cup temperature

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8
Q

Where does an enzyme capsaicin commonly found

A

capsicum

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9
Q

Common method for the removal of fine particle in hot airstream common in cement
production

A

ESP

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10
Q

What is the method that Wohler do to break the vital force theory in nature?

A

Heating NH4Cl
with AgCN to form urea

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11
Q

What is the common form of nitro-glycerol?

A

Nitroglycerin

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12
Q

Definition of polar covalent bond

A

A bond in which electrons are shared between elements
having a difference in electronegativity of between 0.5 and ~2.0.

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13
Q

Arrange in increasing melting point

A

oleic, palmitic, stearic

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14
Q

What is the difference between catabolism, anabolism and metabolism?

A

Cata-the breakdown of
complex molecules in living organisms to form simpler ones, together with the release of
energy, ana- the synthesis of complex molecules in living organisms from simpler ones together
with the storage of energy

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15
Q

What law is PRC modernization act?

A

REPUBLIC ACT NO. 8981

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16
Q

Primary use of ethylene

A

ripening of fruits

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17
Q

What happen to the pH of carbonated drinks if it open in atmospheric condition?

A

increase

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18
Q

Formula red lead

A

Lead(II,IV) oxide

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19
Q

Process of breaking down a large isotope into smaller isotopes

A

nuclear fission,

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20
Q

Author of octet rule

A

gilbert lewis

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21
Q

Adolf baeyers contribution in medicine, made by reacting malonic acid and urea with a catalyst
is called?

A

barbituric acid

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22
Q

Which layer of the atmosphere contains the ozone layer?

A

Stratosphere

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23
Q

Composition of acid in acid rain?

A

sulphuric and nitric acids

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24
Q

How to differentiate alkane, alkene and alkyne?

A

reaction with Br2

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25
Q

Formula of alar

A

C6H12N2O3

26
Q

Arrange in increasing toxicity level

A

heptachlor , dieldrum , Cr, DDT, arsenic

27
Q

Polymer use in bullet proof vest

A

Linear Polyethylene

28
Q

How do you differentiate electromagnetic radiation?

A

Wavelength

29
Q

Who discovered resonance?

A

o Linus Pauling

30
Q

Functional groups in thiotic acid

A

carboxylic group

31
Q

Definition of functional group

A

specific groups of atoms or bonds within molecules that are
responsible for the characteristic chemical reactions of those molecules

32
Q

Product of reaction between acyl halide and an alcohol

A

Ester

33
Q

In stem cell studies, a chemical known as telomeres is attached to the chromosome to promote
longer life. How would you apply this as a chemical engineer in the field of agriculture and food?

A

Genetically enhance plants to prolong shelf life

34
Q

What is the first step in utilizing proteins

A

Hydrolysis

35
Q

Liquid Nitrogen is placed in an Erlenmeyer flask. Hard-boiled egg is then placed on top of the
opening, what will happen?

A

Egg will be sucked in

36
Q

You are an environmental engineer sent to a place with the cholera epidemic, what the best
thing to do?

A

Treat water supply

37
Q

What are plasmids?

A

Plasmids are small DNA molecules within a cell that are physically
separated from a chromosomal DNA and can replicate independently

38
Q

The Nobel Prize for radioactivity discovery was shared between Curie and Roentgen. Who
coined the word “serendipity” in 1754?

A

Horace Walpole

39
Q

What is the chemical used in sunblock?

A

ZnO

40
Q

Ketone and aldehyde in alcohol will form?

A

Acetals/Ketals

41
Q

What is the formula of aspirin?

A

Aspirin is acetylsalicylic acid – acetyl + benzene ring + acetyl
substituent on the benzene ring

42
Q

What is gluconeogenesis?

A

Formation of glucose from non-carbohydrate sources.

43
Q

Why carbon dating?

A

Because C14

44
Q

Can oxygen be synthesized from nitrogen?

A

yes,by the bombardment of alpha particles

45
Q

Which element is difficult to remove from sewage and wastewater and at the same time, it
contributes to bacterial and algae overgrowth in freshwater?

A

nitrogen

46
Q

There are approximately 20 amino acids in human protein. Name 3 essential amino acids

A

Arginine, lysine, phenylalanine

47
Q

How do two free radicals react when they encounter each other?

A
48
Q

How does alpha, beta and gamma particle affect the mass number of an atom?

A

no change

49
Q

Pollutant produced from coal and petroleum

A

CO2,CO,NOx

50
Q

Who discovered x-ray

A

Wilhelm Roentgen

51
Q

Which is nuclear fusion

A

the radiant energy from sun

52
Q

Instrument in measuring Radiation

A

Geiger Counter and Chamber

53
Q

How many neutrons are there in C-14

A

8

54
Q

Iodine vapor forms iodine crystals when it touches a cold surface, what is the reverse the
process being described?

A

Sublimation

55
Q

Notation on alkane containing C

A

chloro

56
Q

Description of primary cell and secondary cell

A

A primary cell or battery is one that cannot easily
be recharged after one use, A secondary cell or battery is one that can be electrically recharged

57
Q

Particle with the same mass of proton?

A

Neutron

58
Q

This contains genetic information

A

DNA

59
Q

What happens to the melting point of a saturated fatty acid if -CH2- is increased?

A

increase

60
Q

What compound is a ketone but is not a carbohydrate but is useful commercially?

A

acetone

DAY 1 (2 decks)

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