General Knowledge Questions

Q:

Which formula represents a polar molecule?

A) C - O B) C - N
C) H - N D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A chemical bond in which the electrons are not shared equally due to differences in the electronegativity of the atoms.

 

The polarity of a covalent bond is measured using its dipole moment.

 Large dipole moment = more polar

 Small dipole moment = more nonpolar.

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Q:

Glycolysis is the conversion of

A) Glucose to pyruvate B) Glucose to proteins
C) Pyruvate to glucose D) All of the above
 
Answer & Explanation Answer: A) Glucose to pyruvate

Explanation:

Glycolysis is the metabolic process of converting 1 molecule of glucose to 2 molecules of pyruvate through a series of 10 enzyme catalyzed reactions.

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Q:

Which best describes Genes?

A) long, double chains of nucleic acids. B) long, single chains of amino acids.
C) long, single chains of nucleic acids. D) long, double chains of amino acids.
 
Answer & Explanation Answer: A) long, double chains of nucleic acids.

Explanation:

Gene is a segment of chromosomal DNA or a sequence of DNA or RNA that codes for a molecule that has a function. It is the basic physical and functional unit of heredity.

 

As genes are made up of DNA it impies that they are long, double chains of nucleic acids as DNA is made of nucleic acids.

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Q:

Which of the following is a property of sodium hydroxide?

A) It is insoluble in ether and other Non-polar solvents B) It is slowly soluble in water
C) It has an odor of rotten egg smell D) All the above
 
Answer & Explanation Answer: A) It is insoluble in ether and other Non-polar solvents

Explanation:

Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions OH−.

Properties:

1. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air.

2. NaOH is insoluble in ether and other non-polar solvents.

3. It is an odorless compound.

 

Uses:

Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner.

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Q:

Brownish film formed on iron when left in open is called?

A) Dust B) Shovel
C) Spade D) Rust
 
Answer & Explanation Answer: D) Rust

Explanation:
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Q:

Which statement about a nonpartisan election is true?

A) Most state senators are chosen in this way B) Successful candidates must be identified by party
C) Successful candidates must be nominated by a major party D) Most school and city officers are chosen in this way
 
Answer & Explanation Answer: D) Most school and city officers are chosen in this way

Explanation:

Nonpartisanism is a lack of affiliation with or bias toward a political party.

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Q:

The common name of sodium bicarbonate is _____.

A) baking soda B) borax
C) bleach D) epsom salt
 
Answer & Explanation Answer: A) baking soda

Explanation:
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Q:

The WHO has launched new Global Influenza Strategy for?

A) 2019 - 2022 B) 2022 - 2025
C) 2019 - 2030 D) 2019 - 2025
 
Answer & Explanation Answer: C) 2019 - 2030

Explanation:
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