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CHE BOARD EXAM > Day 1 MRII > Flashcards

Day 1 MRII Flashcards

1
Q

Which of the following is unsaturated fatty acid?

a: Lauric Acid
b: Myristic Acid
c: Oleic Acid
d: Palmitic Acid

A

C. Oleic Acid

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2
Q

Ozonolysis of Cyclohexene produces

A

Adipic Acid

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3
Q

Recording Spectrophotometers sometimes operate with feedback loops that vary the power of the reference beam until it matches the power of the beam through the sample. This mode of operation:

a. Eliminates the need for a continuous source
b. requires two monochromators
c. eliminates the need for non-absorbing solvents
d. makes the detector a null device, with the result that nonlinear response to a radiant power would not be deleterious

A

d. makes the detector a null device, with the result that nonlinear response to a radiant power would not be deleterious

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4
Q

The amount of chlorine available in water after disinfection is called

A

Residual Chlorine

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5
Q

Which one of the following is a covalent Oxide?

a. BeO
b. MgO
c. K2O
d. Rb2O

A

a. BeO

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6
Q

Conductance measurements at infinite dilution will be valid for the determination of difficulty soluble salts at saturation point because

a. They have very low concentrations at their saturation
b. they conduct minimal current
c. at infinite dilution the concentration cannot be achieved
d. they are strong electrolytes

A

a. they have very low concentrations at their saturation point

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7
Q

Refers to the uptake and translocation of metal contaminants in the soil by plant roots into the above ground portion of the plants

A

phytoextraction

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8
Q

Which of the following is not an hexose?

a. Ribose
b. Fructose
c. Altrose
d. Mannose

A

a Ribose

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9
Q

What is the usual relationship between the number of valence electrons and the number of nearest neighbors of a metal atom in a solid metal?

a. The number of valence electron is less than the number nearest neighbors
b. The number of valence electrons is greater than the number of nearest neighbor
c. the number of valence electrons is equal to the number of nearest neighbors
d. number of valence electrons can be less than, greater than, or equal yo the number of nearest neighbors

A

a. The number of valence electron is less than the number nearest neighbors

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10
Q

Vinylbenzene is also known as

A

Styrene

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11
Q

KMnO4 is a stronger oxidizing agent than Potassium dichromate

A

True

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12
Q

What sequence of process must be done to obtain m-nitrotoluene

A

nitration then alkylation

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13
Q

Microorganisms that use carbon dioxide as their carbon source

A

Photoautotrophs

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14
Q

Addition of Grignard Reagent to Ketones Results in the formation of ________ Alcohol

A

dihydric

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15
Q

The reaction of Alkylhalide and an alkoxide to produce ether is called

A

Williamson Synthesis

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16
Q

The process in petroleum refining that increases the yield of the most useful fraction is

A

Cracking

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17
Q

The process refining that increases the yield of the most useful fraction is

A

Cracking

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18
Q

These processes will produce a ketone

A

Hydration of alkynes, Ozonolysis of alkene, Reduction of Alcohols with NaBH4

19
Q

Collagen, Enzymes, and Hemoglobin are example of

A

Protein

20
Q

Part of the nutrient cycles in which chemical nutrients reside in the soil, water, or air

A

Environmental Phase

21
Q

Visible concentrated growth of algae or other aquatic life/plants is called

A

bloom

22
Q

The ______ is a global undertaking on global warming and greenhouse gases

A

Kyoto Protocol

23
Q

The Compound CFCl3 is used as a/an

A

Refrigerant

24
Q

Who is the current DENR Secretary

A

Maria Antonia Yulo-Loyzaga

25
Q

The temperature at which a real gas obeys the ideal gas law over an appreciable pressure range

A

Boyle Temperature

26
Q

For a face-centered cubic unit cell, each corner contributes ______ lattice points to the unit cell

A

1/8

27
Q

the reagent OsO4 in NaHSO4 will yield _______ from a given alkene

A

diol

28
Q

From the following functional groups: Alcohol, ester, ether, and carboxylic acid. Which of the following will boil second to the last

A

Alcohol

29
Q

Butanol is ______ volatile than diether since it could from stronger IMFA through ________

A

Less, Hydrogen Bonding

30
Q

Alkanes would react to electrophilic addition

A

False

31
Q

Reaction acetone with methyl magnesium bromide, followed by protonation produces a

A

Tertiary Alcohol

32
Q

Which among the following aromatic compounds is more reactive than benzene towards aromatic substitution reactions

Chlorobenzene
Nitrobenzene
Phenyl Ethanoate
Ethyl Benzoate

A

Phenyl Etanoate

33
Q

The administrative order issued by DENR includes “navigable waters” as one of its water classification

A

DAO-2016-08

34
Q

A Persistent Organic Pollutant included in the initial of the 12 POPs under the stockholm convention that is not considered as a pesticide

A

Hexachlorobenzene

35
Q

Trace Metal which causes disintegration of bones or more commonly called itai-itai disease

A

Cd

36
Q

Composition of Acid rain

A

Nitric acid and sulfuric acid

37
Q

Taurine, a beta amini acid belongs to the acidic group of

A

-SO2OH

38
Q

trans-2-pentene and cyclopentane are considered as ________ isomers

A

constitutional

39
Q

The Millenium Prize Problem consists of seven problems in mathematics that were stated by the Clay Mathematics Institute. You want to become the second person to solve one of these problems. What is the first Millennium Prize Problem solved?

A

Poincaré Conjecture

40
Q

Arrange the following in terms of increasing toxicity
1: Heptachlor
2: Dieldrin
3: DDT
4: As
5: Cr

A

3,1, 4, 2, 5

41
Q

Most Abundant element by mass in earth

A

Iron

42
Q

Thunderbolts and lighting, very, very frightening me. When lighthing strikes sand, it fuses grains to create small glass-like tube. What is the name of this compound?

A

Fulgurite

43
Q

He established the law of constant proportions, proposed the concept of allotropy, discovered cerium and selenium, and the vital force theory

A

Jöns Jacob Berzelius

44
Q

The Asian flush that makes a person face red when drinking alcohol is because of the lack of this particular enzyme

A

Aldehyde dehydrogenase 2

CHE BOARD EXAM (34 decks)

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