Questions

Q:

Most commonly used bleaching agent is

A) Chlorine B) Alcohol
C) Carbon dioxide D) Sodium Chloride
 
Answer & Explanation Answer: A) Chlorine

Explanation:

Chlorine is the most commonly used bleaching agent.

 

Bleaching agents are compounds which are used to remove color from substances such as textiles. A bleaching agent is a material that lightens or whitens a substrate through the chemical reaction. The bleaching reactions usually involve oxidative or reductive processes that degrade color systems.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
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10 9994
Q:

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at –6°C will be: (Kf  for water = 1.86 Kg/mol and molar mass of ethylene glycol = 62 kg/mol)

A) 204.60 g B) 304.30 g
C) 804.32 g D) 400.00 g
 
Answer & Explanation Answer: C) 804.32 g

Explanation:

Tf = kf.m 

for ethylene glycol in aq. solution

 Tf = kf wmol.wt × 1000wt. of solvent6 = 1.86 x w x 100062 x 4000

=> w = 800 g

 

So, the weight of solute should be more than 800 g.

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Filed Under: Chemistry
Exam Prep: AIEEE

8 9993
Q:

If Theresa's daughter is my daughter's mother, what am I to Theresa?

A) Son-in-law B) Daughter-in-law
C) Grand mother D) Grand Daughter
 
Answer & Explanation Answer: A) Son-in-law

Explanation:

Given that If Theresa's daughter is my daughter's mother

It has 2 ways of Answers such that it depends on the sex of me. That is Male or Female.

 

1) If I am a Male :

My daughter's mother is my wife.

My wife is Teresa's daughter

=> I am Teresa's Son-in-law.

 

2) If I am a Female :

My daughter's mother is myself.

Myself Teresa's daughter.

=> I am Teresa's Daughter.

 

But in the given options only Son-in-law is available and daughter is not given.

 

So, Son-in-law is correct.

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25 9985
Q:

Sound waves cannot travel in

A) Vacuum B) Water
C) Glass D) Hydrogen gas
 
Answer & Explanation Answer: A) Vacuum

Explanation:

A Sound wave needs a medium for propogation. Hence, Sound cannot travel through a vacuum.

A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

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Filed Under: Physics
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6 9985
Q:

Computer storage units smallest to largest?

Answer

The smallest unit of data storage in a computer is called Bit (Binary Digit). Half a byte (four bits) is called a Nibble.


 


1 bit (binary digit) = the value of 0 or 1


8 bits = 1 byte


1024 bytes = 1 kilobyte


1024 kilobytes = 1 megabyte


1024 megabytes = 1 gigabyte


1024 gigabytes = 1 terabyte


1024 terabytes = 1 petabyte


 


Hence, Computer storage units smallest to largest i.e, in ascending order is


 1 bit  <  1 byte  <  1 KB  <  1 MB  <  1 GB  <  1TB  <  1 PB.

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9 9980
Q:

Which planet was named after the Roman God Zeus

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

Explanation:
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Filed Under: World Geography

10 9967
Q:

Major fructose sources include

A) Fruit juices B) Corn syrup
C) Honey D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Major fructose sources include all fruits and honey.

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Filed Under: Biology
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7 9961
Q:

Amrita Pritam's work " A Revenue Stamp" is

A) A book of stories B) A novel
C) A biography D) An autobiography
 
Answer & Explanation Answer: D) An autobiography

Explanation:
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Filed Under: Books and Authors

23 9959