Chemistry, Physics And Biology
Try not to use the internet for these questions =P (25 questions)
Questions and Answers
- 1.
During the neutralization process of base Sodium Hydroxide (NaOH) and acid Hydrochloride (HCl), water (H2O) and what other substance is produced?
- A.
Sodium Fluoride
- B.
Sodium Chloride
- C.
Sodium Hydroxide
- D.
Calcium Sulfate
- E.
Mercury
Correct Answer
B. Sodium ChlorideExplanation
When any acid comes in contact with a base, a process occurs called neutralization, where it produces pure water, and a salt. In this case the very poisonous Sodium Hydroxide (Lye) combines with the very corrosive Hydrochloric Acid, to give us water and Sodium Chloride (Harmless Table Salt).Rate this question:
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- 2.
Helium is well-known to make your voice's tone much higher. A less renowned gas called Sulfur Hexafluoride, does the opposite. Which property of these gases is the reason your voice is influenced this way?
- A.
Temperature
- B.
Volume
- C.
Combustibility
- D.
Density
- E.
General Reactivity
Correct Answer
D. DensityExplanation
Helium is 6 times lighter than air, therefor the sound waves generated in your vocal chambers pass through the gas much more quickly than normal air. This raises the frequency and subsequently the tone of the sound. The reverse can be achieved by inhaling Sulfur Hexafluoride, because it is 6 times denser than normal air. It slows down your sound waves, and the tone becomes much lower.Rate this question:
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- 3.
Which of the following scientists did not research Quantum Physics?
- A.
Michael Faraday
- B.
Max Planck
- C.
Albert Einstein
- D.
Stephen Hawking
- E.
Isaac Newton
Correct Answer
E. Isaac NewtonExplanation
Isaac Newton did not research Quantum Physics. Although Newton made significant contributions to the field of physics, his work predates the development of Quantum Physics. Newton's most famous contributions include his laws of motion and the law of universal gravitation, which laid the foundation for classical physics. Quantum Physics, on the other hand, emerged in the early 20th century with the work of scientists like Max Planck, Albert Einstein, and others. Therefore, it can be concluded that Isaac Newton did not research Quantum Physics.Rate this question:
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- 4.
Which is not one of the four main species of insect?
- A.
Diptera
- B.
Coleoptera
- C.
Hemiptera
- D.
Hymenoptera
- E.
Lepidoptera
Correct Answer
C. HemipteraExplanation
Hemiptera is not one of the four main species of insect. The four main species of insect are Diptera (flies and mosquitoes), Coleoptera (beetles), Hymenoptera (ants, bees, and wasps), and Lepidoptera (butterflies and moths). Hemiptera, on the other hand, refers to true bugs, which have specialized mouthparts for piercing and sucking.Rate this question:
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- 5.
What group do the following elements belong to?LithiumSodiumPotassiumRubidiumCesiumFrancium
- A.
Halogens
- B.
Transition Metals
- C.
Metalloids
- D.
Alkali Metals
- E.
Noble Gases
Correct Answer
D. Alkali MetalsExplanation
The given elements, lithium, sodium, potassium, rubidium, cesium, and francium, belong to the group of alkali metals. Alkali metals are highly reactive metals that are found in Group 1 of the periodic table. They have one valence electron and are known for their low melting points and ability to easily lose that electron to form positive ions. These elements are soft, silvery-white in color, and are highly reactive with water and air. They are commonly used in various applications, such as batteries, alloys, and fireworks.Rate this question:
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- 6.
The elements from the last question are highly reactive with what substance?
- A.
Water
- B.
Iron
- C.
Milk
Correct Answer
A. WaterExplanation
The elements from the last question are highly reactive with water.Rate this question:
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- 7.
invented the first model of the Periodic Table.
Correct Answer
Mendeleev
Dmitri Mendeleev
Dmitri Ivanovich MendeleevExplanation
Dmitri Mendeleev is credited with inventing the first model of the Periodic Table. He was a Russian chemist who organized the known elements based on their properties and atomic weights. His work laid the foundation for the modern Periodic Table that we use today.Rate this question:
- 8.
The small intestine is comprised of 3 parts. An example of one is the _________.
Correct Answer
Duodenum
Jejunum
IleumExplanation
The small intestine is divided into three parts: the duodenum, jejunum, and ileum. These three parts work together to digest and absorb nutrients from the food we eat. The duodenum is the first part of the small intestine and receives partially digested food from the stomach. The jejunum is the middle part and is responsible for the majority of nutrient absorption. The ileum is the final part and absorbs any remaining nutrients, as well as bile salts and vitamin B12. Therefore, all three parts are examples of segments within the small intestine.Rate this question:
- 9.
Inertia is described by which of Newton's laws?
- A.
First
- B.
Second
- C.
Third
Correct Answer
A. FirstExplanation
Newton's first law explains that any stationary object will remain stationary until acted upon by an external force. It will remain to move in the same speed and direction as the additional force until another force such as gravity or friction alters it.Rate this question:
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- 10.
Methylenedioxymethamphetamine (MDMA) is a psychoactive hallucinogen by what more popular name?
- A.
Crack Cocaine
- B.
Marijuana
- C.
Ecstasy
- D.
LSD Acid
- E.
Crystal Meth
Correct Answer
C. EcstasyExplanation
MDMA, also known as Methylenedioxymethamphetamine, is commonly referred to as Ecstasy. Ecstasy is a popular name for this psychoactive hallucinogen.Rate this question:
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- 11.
What is the more accepted name for "adrenaline?"
- A.
Epinephrine
- B.
Saratonin
- C.
Endorphins
- D.
Melatonin
Correct Answer
A. EpinephrineExplanation
The term "Epinephrine" was chosen because "Adrenaline" bore an extremely close resemblance to the Parke, Davis & Co trademark, "Adrenalin." Outside of the U.S. however, the term "adrenaline" is still widely accepted.Rate this question:
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- 12.
Pneumonoultramicroscopicsilicovolcanoconiosis is recognized as the longest English word in practical use. What does it mean?
- A.
Diabetes
- B.
Tonsillitis
- C.
Polio
- D.
Stomach Cancer
- E.
Black Lung
Correct Answer
E. Black LungExplanation
Pneumonoultramicroscopicsilicovolcanoconiosis is a term used to describe a lung disease caused by the inhalation of very fine silica dust, typically found in coal mines. This disease, also known as black lung, is prevalent among coal miners and can lead to severe respiratory problems and lung damage.Rate this question:
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- 13.
Bee stings, as well as stings from some types of ants, "burn" so much due to the injection of what acid?
- A.
Citric
- B.
Formic
- C.
Hydrochloric
- D.
Ascorbic
- E.
Sulfuric
Correct Answer
B. FormicExplanation
Bee stings and stings from some types of ants "burn" due to the injection of formic acid. Formic acid is a colorless liquid with a pungent odor and can cause a burning sensation when it comes into contact with the skin. This acid is produced by certain insects, including bees and ants, as a defense mechanism. When injected into the skin, formic acid irritates the nerve endings, leading to the sensation of burning.Rate this question:
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- 14.
Which acid is most corrosive to inorganic substances?
- A.
Formic
- B.
Hydrochloric
- C.
Hydrofluoric
- D.
Phosphoric
- E.
Sulfuric
Correct Answer
E. SulfuricExplanation
Sulfuric acid is the most corrosive to inorganic substances because it is a strong acid that can react with a wide range of materials. It is highly reactive and can dissolve metals, ceramics, and other inorganic compounds. Sulfuric acid is commonly used in industrial processes for cleaning, etching, and manufacturing various products. Its corrosive nature makes it a potent and dangerous substance that requires careful handling and storage.Rate this question:
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- 15.
Which acid is most corrosive to organic substances?
- A.
Formic
- B.
Hydrochloric
- C.
Hydrofluoric
- D.
Phosphoric
- E.
Sulfuric
Correct Answer
C. HydrofluoricExplanation
Hydrofluoric acid is the most corrosive to organic substances because it is highly reactive and can easily penetrate the skin, making it extremely dangerous. It has a strong affinity for calcium and magnesium ions, which are essential for the functioning of cells. This acid can cause severe burns, tissue damage, and even death if not handled properly. It is commonly used in industrial processes, such as glass etching and metal cleaning, due to its strong corrosive properties.Rate this question:
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- 16.
The Kidneys, Pituitary Gland, Hypothalamus, Prostate, Ovaries, Thyroid, Pancreas, and Pineal Gland all release what?
- A.
Nerve Signals
- B.
Gametes
- C.
Emotions
- D.
Hormones
Correct Answer
D. HormonesExplanation
Some are called Endocrine, some are Exocrine, but each of these organs releases at least one kind of hormoneRate this question:
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- 17.
Which of these elements is not entirely necessary for human life?
- A.
Thallium
- B.
Arsenic
- C.
Lead
- D.
Chlorine
- E.
Strontium
Correct Answer
A. ThalliumExplanation
It may not sound right, but trace amounts of Strontium, Arsenic, Lead, and Chlorine are all needed to regulate your body conditions. This is called homeostasis.Rate this question:
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- 18.
Which of the following gases is not flammable?
- A.
Butane
- B.
Carbon Monoxide
- C.
Hydrogen
- D.
Methane
- E.
Carbon Dioxide
Correct Answer
E. Carbon DioxideExplanation
Carbon dioxide is not flammable because it is a non-combustible gas. Flammability refers to the ability of a substance to ignite and burn in the presence of oxygen. While gases like butane, carbon monoxide, hydrogen, and methane are all flammable and can support combustion, carbon dioxide does not burn and therefore is not considered flammable.Rate this question:
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- 19.
Ethanol is known by many names. Which is it not known by?
- A.
Ethyl Alcohol
- B.
Solid Alcohol
- C.
Pure Alcohol
- D.
Grain Alcohol
- E.
Drinking Alcohol
Correct Answer
B. Solid AlcoholExplanation
Ethanol is commonly known by several names such as ethyl alcohol, pure alcohol, grain alcohol, and drinking alcohol. However, it is not known as solid alcohol. Solid alcohol refers to a different type of substance, such as a solid fuel made from ethanol or methanol.Rate this question:
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- 20.
Which one of these animals doesn't have a prehensile tail?
- A.
Opossum
- B.
Harvest Mouse
- C.
Raccoon
- D.
Spider Monkey
- E.
Bicolored-Spined Porcupine
Correct Answer
C. RaccoonExplanation
The raccoon is the correct answer because it is the only animal listed that does not have a prehensile tail. Prehensile tails are specialized appendages that can grasp or hold objects, allowing animals to manipulate their environment. Opossums, harvest mice, spider monkeys, and bicolored-spined porcupines all have prehensile tails, which they use for climbing, grasping branches, or hanging from trees. Raccoons, on the other hand, have non-prehensile tails that are used for balance and communication, but cannot grasp objects like the others.Rate this question:
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- 21.
What is the scientific terminology for a force or chemical that causes a reaction to take place or speed up the process? (Such as heat, water, or amino acids)
- A.
Enforcer
- B.
Producer
- C.
Reactor
- D.
Catalyst
- E.
Enhancer
Correct Answer
D. CatalystExplanation
A catalyst is a scientific terminology for a force or chemical that causes a reaction to take place or speeds up the process. It is not the reactant itself, but it lowers the activation energy required for the reaction to occur, thereby increasing the rate of the reaction. Catalysts are not consumed in the reaction and can be used repeatedly. They provide an alternative reaction pathway with a lower energy barrier, allowing the reaction to proceed more easily.Rate this question:
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- 22.
What is formaldehyde used for?
- A.
Organic Preservation
- B.
Chemical Storage
- C.
Inorganic Preservation
- D.
Gene Splicing
- E.
Osmoregulatory Functions of saltwater fish
Correct Answer
A. Organic PreservationExplanation
Formaldehyde is commonly used for organic preservation. It is a versatile chemical that can help prevent decay and preserve biological specimens, such as tissues, organs, and whole organisms. It works by inhibiting the growth of bacteria and other microorganisms that can cause decomposition. Formaldehyde is often used in laboratories, museums, and medical facilities for the long-term storage and display of biological samples. It is also used in embalming processes for preserving human and animal bodies.Rate this question:
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- 23.
Which chemical is key in your body as a catalyst and energy source?
- A.
ADP
- B.
THC
- C.
ATP
- D.
PLB
- E.
NaH
Correct Answer
C. ATPExplanation
If you had Mr. Nowak and you didn't know the answer was ATP (Adenosine Triphosphate).... just give up.Rate this question:
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- 24.
When your eyes gather the light in front of you to create an image, what is wrong with it before your brain corrects it and gives you the image you see?
- A.
The image's colors are inverted
- B.
The image's edges are distorted
- C.
The image is upside-down
- D.
The image is backwards
- E.
The image is just different shades of blue
Correct Answer
C. The image is upside-downExplanation
When light passes through your cornea, it flips at the focal point. This causes the image that goes to your brain to be upside-down, but it is immediately corrected when you see it.Rate this question:
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Mar 21, 2023Quiz Edited by
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Aug 15, 2009Quiz Created by
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