Day 1 Flashcards

1
Q

Particle with the same mass of proton

A

Neutron

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2
Q

What does a nucleus atom contain?

A

Protons and neutrons

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3
Q

Who discovered radioactivity?

A

Henri Becquerel

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4
Q

Who discovered vulcanization?

A

Charles Goodyear

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5
Q

Number of carbon atoms in olvanil?

A

26 (C26H43NO3)

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6
Q

Formula of Alar

A

C6H12N2O3

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7
Q

Author of Octet Rule

A

Gilbert Lewis

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8
Q

Formula of red lead

A

Pb3O4

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9
Q

Which layer of the atmosphere contains the ozone layer?

A

Stratosphere

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10
Q

Composition of acid in acid rain

A

Sulphuric and Nitric acids

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11
Q

Chemical formula for 11-tetradecenyl acetate

A

C16H30O2

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12
Q

Nearest layer of the atmosphere from the earth’s surface

A

Troposhere

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13
Q

How to differentiate alkane, alkene and alkyne?

A

Reaction with Br2

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14
Q

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

A

Barbituric acid

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15
Q

An organic reaction where the unsaturated bonds of alkanes, alkynes or azo compounds are cleaved with ozone

A

Ozonolysis

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16
Q

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

A

Edman degradation

17
Q

What is the other name for bulk temperature?

A

Mixing cup temperature

18
Q

Where does the enzyme capsaicin commonly found

19
Q

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

20
Q

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

A

Heating Nh4Cl with AgCN to form urea

21
Q

What is the common form of nitro-glycerol

A

Nitroglycerin

22
Q

Common contaminant on BTEx process

A

Benzene, Toluene, Ethylbenzene and Xylene

23
Q

A bond in which electrons are shared between elements having a difference in electronegativity of between 0.5 and 2

A

Polar Covalent Bond

24
Q

Arrange in increasing melting point

palmitic, stearic, oleic

A

Oleic, palmitic, stearic

25
What is the primary use of ethylene
Ripening of fruits
26
What law is the PRC Modernization Act?
Republic Act No. 8981
27
What happen to the pH of carbonated drinks if it open in atmospheric condition?
Increase
28
Formation of glucose from non-carbohydrate sources
Gluconeogenesis
29
Polymer use in bulletproof vest
Linear polyethylene | Nagwa ni sa board exam namun
30
Who discovered resonance?
Linus Pauling
31
What is the chemical used in sunblock
ZnO
32
Liquid nitrogen is placed in an erlenmeyer flask. Hard boiled egg is then placed on top of the opening, what will happen?
Egg will be sucked in
33
Ketone and aldehyde in alcohol will form
Ketals and acetals
34
What is the first step in utilizing proteins
Hydrolysis
35
What is the molecular weight of sucrose
342
36
How does alpha, beta and gamma particle affect the mass number of an atom
4, 0, 0
37
Can oxygen be synthesized from nitrogen?
Impossible