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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Q:

The decentralization system was recommended by

A) C. Rajgopalachari B) Balwant Rai Mehta
C) J. B. Kriplani D) Ashok Mehta
 
Answer & Explanation Answer: B) Balwant Rai Mehta

Explanation:

The decentralization system was recommended by Balwant Rai Mehta.

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Q:

Improve the bracketed part of the sentence.
It was so hot during the concert that some spectators passed (out).

A) away B) by
C) over D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Q:

Core of earth is also known as

A) Barysphere B) Centrosphere
C) Besosphere D) Lithosphere
 
Answer & Explanation Answer: A) Barysphere

Explanation:

Core of earth is also known as Barysphere.

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Q:

The Bantu were experts in this form of metallurgy

A) Copper B) Gold
C) Iron D) Steel
 
Answer & Explanation Answer: C) Iron

Explanation:

The Bantu were comprised of more than 500 ethnic groups of Africa for migrations. The Bantu were experts in the form of iron metallurgy. 

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Q:

"Abhinav Bharat" was founded in 1904 as a secret society of revolutionaries by :

A) Damodar Chapekar B) V. D. Savarkar
C) Praffula Chaki D) Khudiram Bose
 
Answer & Explanation Answer: B) V. D. Savarkar

Explanation:
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Q:

All phosphorus atoms have the same

A) Mass number B) Number of neutrons plus the number of electrons
C) Atomic number D) Number of neutrons plus the number of protons
 
Answer & Explanation Answer: C) Atomic number

Explanation:
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Q:

GDP tends to overstate economic well-being because it takes into account

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