Questions

Q:

Which of the following is the strongest base?

A) LiCH3 B) LiF
C) LiOH D) LiNH2
 
Answer & Explanation Answer: A) LiCH3

Explanation:

The stability of the ions is determined by the energy of the lone pairs. Carbon has the least effective nuclear charge (Zeff) and so the lone pair on the CH3− ion has the highest energy, making it the least stable ion and so the strongest base. The Zeff increases as we move across the period until we get to fluorine which has the greatest Zeff and so its lone pairs have the lowest energy, making F− the least basic ion.

 

In order of decreasing basicity they are ranked LiCH3 > LiNH2 > LiOH > LiF. We are dealing with the ions F−, OH−, NH2− and CH3− and so the factor which influences their basicity is the stability of the ion compared to its conjugate acid.

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Q:

Find the acceleration (in m/s2) of a body which accelerates from 15 m/s to 40 m/s in 2 seconds.

 

A) 12.5 B) 27.5  
C) 25 D) 55
 
Answer & Explanation Answer: A) 12.5

Explanation:
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Q:

Who wrote the social contract?

A) Jean-Jacques Rousseau B) Immanuel Kant
C) John Locke D) Voltaire
 
Answer & Explanation Answer: A) Jean-Jacques Rousseau

Explanation:

Jean-Jacques Rousseau (1712–1778), in his influential 1762 treatise The Social Contract, outlined a different version of social contract theory, as the foundations of political rights based on unlimited popular sovereignty.

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Q:

Who are the primary users of SCM systems?

A) Accounting, finance, logistics, and production B) Customers, resellers, partners, suppliers, and distributors
C) Sales, marketing, customer service D) All of the above
 
Answer & Explanation Answer: B) Customers, resellers, partners, suppliers, and distributors

Explanation:
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Q:

An interest group hires lobbyists to

 

A) influence legislators B) raise money for politicians
C) handle tough problems D) enact laws in its favor
 
Answer & Explanation Answer: A) influence legislators

Explanation:
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Q:

A girl is blind, deaf, dumb and uneducated too.

A_girl_was_blind,_deaf_and_dumb1532339026.jpg image

Answer

It's a logic question. The answer can be


Boy can propose because he is not blind,deaf n dumb. It was not mentioned that the girl have to understand his proposal.

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Q:

Which of the following statements about monosaccharide structure is true?

A) Aldoses and ketoses differ in the position of their hydroxyl groups. B) Monosaccharides can be classified according to the spatial arrangement of their atoms.
C) All monosaccharides contain carbon, hydrogen, oxygen, and nitrogen atoms. D) A six-carbon sugar is called a pentose.
 
Answer & Explanation Answer: B) Monosaccharides can be classified according to the spatial arrangement of their atoms.

Explanation:

Monosaccharides, also called simple sugars, are the most basic units of carbohydrates. They are fundamental units of carbohydrates and cannot be further hydrolyzed to simpler compounds.

 

Hence, Monosaccharides can be classified according to the spatial arrangement of their atoms is true about Monosaccharides.

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Q:

The first-ever National Road Safety Month was observed in which year, in India?

 

A) 2021 B) 2019
C) 2017 D) 2015
 
Answer & Explanation Answer: A) 2021

Explanation:
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