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Q:

Why are hydrocarbons insoluble in water?

Answer

We know that polar substances are soluble in polar solvents and non polar substances are soluble in non-polar solvents only. Here the hydrocarbons are non-polar molecular substances and water is a polar solvent. So water can't dissolve hydrocabons.


 


Hence, as hydrocarbons are non-polar substances, they are insoluble in water as it is a highly polar solvent. 

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

Grand Central Terminal Park Avenue is the world's

A) smallest railway station B) largest railway station
C) longest railway station D) None of above
 
Answer & Explanation Answer: B) largest railway station

Explanation:

Grand Central Terminal also referred to as Grand Central Station or Grand Central is the world’s largest railway station in terms of platforms in New York City with 44 platforms covering 48 acres.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

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Q:

A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the the bucket. The reading of the spring balance

A) will increase B) will decrease
C) does not change D) varies with the increase of depth of the immersion of the iron piece
 
Answer & Explanation Answer: A) will increase

Explanation:

When the piece of iron is lowered into the water, the water level in the bucket increases. And so the pressure at the bottom of bucket also increases. Thus the total thrust at bottom also increases. Therefore the spring balance reading increases. Thus (a) is correct.

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Filed Under: Physics

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Q:

Govt of India recently decided to import wheat at a lower rate of Custom duty. The effective rate of the duty would be

A) 15% B) 12%
C) 10% D) 5%
 
Answer & Explanation Answer: D) 5%

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams
Job Role: Bank PO

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Q:

U- Tant award is given for

A) Social service B) Contribution to east-west understanding
C) Community leadership D) Journalism
 
Answer & Explanation Answer: A) Social service

Explanation:
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Filed Under: Honours and Awards

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Q:

Which best matches the description with the genetic material?

A) Chromosomes are located in the cytoplasm. B) DNA is located in the nucleus.
C) Nucleotides form a helical structure that is called a gene. D) Chromosomes create genes.
 
Answer & Explanation Answer: B) DNA is located in the nucleus.

Explanation:

DNA is the genetic material in the cell. 

 

Hence, option B) DNA is located in the nucleus best matches the description with the genetic material.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk

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Q:

To eliminate definition duplication, XML Schemas define:

A) an intersection table. B) global elements.
C) a normalized definition table. D) None of the above is correct.
 
Answer & Explanation Answer: B) global elements.

Explanation:
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Filed Under: Database

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Q:

Of the three ways to create an Oracle database, which one is the easiest and most recommended?

A) Using the Oracle Database Configuration Assistant. B) Using the Oracle-supplied database creation procedures.
C) Using the SQL CREATE DATABASE command. D) None of the above is correct.
 
Answer & Explanation Answer: A) Using the Oracle Database Configuration Assistant.

Explanation:
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Filed Under: Database

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