Questions

Q:

Which two atoms form an ionic bond?

Answer

Ionic bonding is a type of chemical bond in which valence electrons are lost from one atom and gained by another.. This bond generates two oppositely charged ions.


In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.


 


Example ::


One example of an ionic bond is the formation of sodium fluoride, NaF, from a sodium atom and a fluorine atom. In this reaction, the sodium atom loses its single valence electron to the fluorine atom, which has just enough space to accept it. The ions produced are oppositely charged and are attracted to one another due to electrostatic forces.

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

E.K. Janaki Ammal National Award on Taxonomy is administered by the

A) Ministry of Agriculture and Farmers Welfare B) Ministry of New and Renewable Energy
C) Ministry of Health and Family Welfare D) Ministry of Environment,Forest and Climate Change  
 
Answer & Explanation Answer: D) Ministry of Environment,Forest and Climate Change  

Explanation:

In order to encourage work of excellence in taxonomy and also to encourage young students and scholars to work in this field of science, this award, named after the late Prof. E.K. Janaki Ammal was instituted in the year 1999.Late Prof. Janaki Ammal did taxonomic work of outstanding merit and excellence, particularly in the area of cytotaxonomy and has been a source of inspiration to many young scientists.The award is presented by Ministry of Environment, Forest and Climate Change

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Filed Under: Indian Politics
Exam Prep: Bank Exams

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Q:

Which statement about general education policy is most accurate?

A) It is set by multiple levels of the government. B) It is determined by local school boards.
C) It is controlled only by the federal government. D) It provides its funding at the state level.
 
Answer & Explanation Answer: A) It is set by multiple levels of the government.

Explanation:

General education policy is set by multiple levels of the government like Federal, state and local governments. 

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Q:

What is the shortcut key to open font dialog box?

A) Ctrl+Shift+F B) Alt+Ctrl+F
C) Alt+Shift+F D) None of the above
 
Answer & Explanation Answer: A) Ctrl+Shift+F

Explanation:

Ctrl+Shift+F Opens the Font dialog box with the focus at the Font combo box.

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Filed Under: Computer
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Q:

Which planet do most known extrasolar planets most resemble?

A) Jupiter B) Neptune
C) Earth D) Venus
 
Answer & Explanation Answer: A) Jupiter

Explanation:

Most of the known extrasolar planets resembles the planet Jupiter in the solar system.

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Filed Under: General Awareness
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Q:

Most of the oxygen transported by the blood is

A) bound to hemoglobin B) dissolved in plasma
C) dissolved in water D) in ionic form as solute in plasma
 
Answer & Explanation Answer: A) bound to hemoglobin

Explanation:

Oxygen is transported throughout the body via hemoglobin in the red blood cells. Hence, most of the oxygen transported by the blood is bounded to hemoglobin.

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Filed Under: Biology
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Q:

An important function of fat in the body is to

A) Protect vital organs B) Stores energy
C) Insulate us D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: Biology
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Q:

Radiocarbon is produced in the atmosphere as a result of

A) collision between fast neutrons and nitrogen nuclei present in the atmosphere B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere D) lightning discharge in atmosphere
 
Answer & Explanation Answer: A) collision between fast neutrons and nitrogen nuclei present in the atmosphere

Explanation:
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Filed Under: Physics

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