ASVAB Exams Practice test No.3 General Science

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ASVAB Exams Practice test No.3 General Science

Q1. Which of the following is commonly referred to as "Laughing Gas"?

A) Nitric oxide

B) Nitrogen penta dioxide

C) Nitrous oxide

D) Nitrogen The chemical compound with the formula N₂O is nitrous oxide, also referred to as laughing gas.

ASVAB Exams Practice test No.3 General Science

Q2. Choose the non-metallic mineral from the options provided.

A) Nickel

B) Silica

C) Bauxite

D) zinc

ASVAB Exams Practice test No.3 General Science

Q3. Which among the following are constituents of Brass?

A) Zinc and Copper

B) Iron and Zinc

C) Copper and Nickel

D) Iron and Copper

Q4. What acid is most prevalent in grapes and tamarind?

A) Malic Acid

B) citric acid

C) Tartaric Acid

D) Lactic Acid

Q5. Which of the following elements are usually found in a free state?

A) Group 15 elements

B) Group 10 elements

C) Group 18 elements

D) Group 11 elements Gold, silver, and copper are Group 11 elements. These metals are found in elemental form in nature. They are in a free state because they are least reactive.

Q6. Which of these oxides contributes to acid rain?

A) Sulphur dioxide and carbon monoxide

B) Carbon dioxide and nitrous oxide

C) Nitrous oxide and sulphur dioxide

D) Carbon monoxide and carbon dioxide The sulphur dioxide and Nitrous oxide react with water, oxygen and other chemicals to form sulfuric and nitric acids.

ASVAB Exams Practice test No.3 General Science

Q7. Which of the following is referred to as Hypo?

A) Sodium thiosulphate

B) Calcium nitrate

C) Calcium ammonium nitrate

D) Tetra Ethyl Lead A significant inorganic salt with numerous medical applications is sodium thiosulfate. It is also referred to as "hypo" sodium hyposulfite.

Q8. Which among the following is the main constituent of Biogas?

A) Butane

B) Propane

C) Ethane

D) Methane Biogas primarily consists of methane (CH4) and carbon dioxide (CO2), with traces of moisture, hydrogen sulphide (H2S), and siloxanes.

ASVAB Exams Practice test No.3 General Science

Q9. Which among following is also known as white gold?

A) Palladium

B) Platinum

C) Rhodium

D) Nickel Platinum is a white metal by nature. It does not require alloying to give it colour. It is frequently referred to as "White Gold" because of its white appearance.

Q10. What kind of acid is referred to as HOOCCOOH?

A) Carbonic Acid

B) Acetic Acid

C) Oxalic Acid

D) Citric Acid

Q11. When Sulphur is heated with rubber, the process is commonly known as ?

A) Hydrodesulfurization

B) Vulcanization

C) Sulphonation

D) Galvanization

ASVAB Exams Practice test No.3 General Science

Q12. Which among the following chemicals is used in Photography?

A) Silver Bromide

B) Magnesium Chloride

C) Potassium Chloride

D) Sodium Bromide

Q13. What happens to the weight of Iron, when it rusts?

A) Remains the same

B) Decreases then increases

C) Increases then decreases

D) Increases for long time When any metal, including iron, oxidises, oxygen from the air combines with the metal to form iron oxide, also known as rust. Because more oxygen has combined with the iron, the weight of the bar thus increases. The weight of the iron bar will tend to decrease over time for reasons that have more to do with erosion than chemistry.

Q14. Speed of sound is maximum in which among the following?

A) Solids

B) Gases

C) Vaccum

D) liquids

ASVAB Exams Practice test No.3 General Science

Q15. Which of the following metals has both the highest electrical and thermal conductivity?

A) Gold

B) Silver

C) Iron

D) Platinum

Q16. Which of the following is an ore of calamine?

A) Zinc

B) Copper

C) Mercury

D) Iron The most prevalent form of zinc ore is zinc carbonate (ZnCO3), also referred to as calamine or smithsonite.

Q17. Which of the following is a common name for the widely used medication "Acetylsalicylic Acid"?

A) Aspirin

B) Paracetamol

C) Wintergreen

D) Salsalate Acetylsalicylic acid (ASA), also known as aspirin, is a nonsteroidal anti-inflammatory drug (NSAID) used to treat inflammation, fever, and/or pain as well as a blood thinner.

ASVAB Exams Practice test No.3 General Science

Q18. Which of the following forms of nitrogen can be found in urea?

A) Nitrite

B) Nitrate

C) Amide

D) Ammonium

Q19. Galena and Litharge are ores of which of the following metals?

A) Mercury

B) Lead

C) Copper

D) Zinc One of the naturally occurring mineral forms of lead(II) oxide, or PbO, is litharge. Galena ores undergo oxidation, which results in the secondary mineral known as litharge.

Q20. Bleaching Powder is a compound of ______?

A) Calcium

B) Magnesium

C) Sodium

D) Sulphur Chemically speaking, bleaching powder is calcium oxychloride (CaOCl2). Backmann's plant is used to make bleaching powder, which is made by forcing slack lime and chlorine to react.

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(Armed Services Vocational Aptitude Battery Test) The ASVAB practise exams and all other resources on this website are totally free.There are difficult practise questions in each of our free ASVAB tests.

ASVAB Exams Practice test No.3 General Science