NSB General Questions

Question 1

In electrochemical cells, what is the most common term for the electrode
that acts as the negative electrode?

Answer 1

Cathode

Question 2

If the electronegativity difference in the bonding atoms is large, what
general type of bond is formed?

Answer 2

Ionic

Question 3

Which of the following molecules has a double covalent bond:
W) hydrogen
X) oxygen
Y) nitrogen
Z) methane

Answer 3

Oxygen

Question 4

Most corticosteroids are synthesized in what specific part of the human
body?

Answer 4

Adrenal Cortex

Question 5

What is the name for the common ocean waves that are not driven by the wind but sustained by the energy they obtained by the sea?

Answer 5

Swells

Question 6

A hexadecimal number is a numeral system with a radix or a

base of what?

Answer 6

16

Question 7

What is the name for the most malleable and ductile metal which can be dissolved in aqua regia but is unaffected by air and most other reagents?

Answer 7

Gold

Question 8

What is the molecular formula for the conjugate acid of the following Brønsted-Lowry base: SO4^2–

Answer 8

HSO4–

Question 9

What is a Bronsted Lowry Acid?

Answer 9

Any molecule that releases hydrogen ions

Question 10

What is a Bronsted Lowry Base?

Answer 10

Any molecule that accepts hydrogen ions

Question 11

Define cirrostratus

Answer 11

cloud forming a thin, more or less uniform, semitranslucent layer at high altitude, usually

Question 12

The lush forest of the Pacific northwest is classified as what
type of rain forest?

Answer 12

Temperate

Question 13

What is the most common term used to describe the velocity of an object at any one discrete moment along its path?

Answer 13

INSTANTANEOUS VELOCITY

Question 14

What are leptons?

Answer 14

Any of a family of elementary particles that interact through the weak force and do not participate in the strong force.

Question 15

What lepton was the first to be discovered?

Answer 15

electron

Question 16

A beaker of concentrated aqueous ammonia is placed next to a beaker of concentrated aqueous hydrochloric acid at room temperature. After a short while, a white
cloud forms between the beakers. This is a demonstration of:
W) effusion
X) diffusion
Y) efflorescence
Z) effervescence

Answer 16

Diffusion

Question 17

In addition to the “sniff test”, which of the following is a standard laboratory test for a sulfide, such as hydrogen sulfide gas:
W) the gas passed over a filter paper soaked in colorless lead nitrate turns the paper brown
X) when inserted into a flame, a glowing wooden splint bursts into flames
Y) a flame test gives off a deep purple color
Z) paper chromatography

Answer 17

W

Question 18

Rounded to the nearest whole degree, what is the obliquity of the ecliptic?

Answer 18

23

Question 19

In one cycle of alternating current, 180º is given to the point at what fractional amount of the way through the cycle?

Answer 19

1/2

Question 20

Which gas that is tested for by ignition in air on contact with a lighted splint to produce a high-pitched “popping” sound?

Answer 20

hydrogen

Question 21

Which of the following numbers is evenly divisible by both 11 and 3:
W) 7791
X) 7553
Y) 5181
Z) 8769

Answer 21

Y

Question 22

Group 1 cations and group 7 anions combine to form:
W) metal alloys
X) alkali halides
Y) alkaloids
Z) organometallic compounds

Answer 22

X (Salts)

Question 23

What human gland or organ produces tri-iodothyronine (read as: TRY- I-OH-doh-THY-row-neen)?

Answer 23

Thyroid

Question 24

A child learns that mixing approximately equal amounts of the paint colors orange and green produces brown. This is an example of:

Answer 24

Subtractive Color Synthesis