Questions

Q:

Under which conditions are gases most soluble in water?

A) low pressure and low temperature B) low pressure and high temperature
C) high pressure and low temperature D) high pressure and high temperature
 
Answer & Explanation Answer: C) high pressure and low temperature

Explanation:

Henry's Law tells that the solubility of a gas is directly proportional to the partial pressure of the gas above the solvent. Hence under high pressure, more gas is dissolved.

Also that Henry's Law involves a constant which is temperature-dependent. Under high temperatures, less gas is dissolved whereas under low temperatures, more gas is dissolved.

 

For Example ::  

You can think of a can of soda. The contents are under pressure and if you shake the can before opening, the soda fizzes out all over as you open it. So the higher the pressure, the more gas or more CO2 can be dissolved in the drink.

Eliminate choices 1 and 2. Now focus on the temperature. Soda goes flat (loses carbonation or gas) as it warms up. Soda is usually served cold because more of the carbonation or CO2 stays in the drink when the soda is cold.

 

Hence, in high pressure and low temperature conditions gases are most soluble in water.

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

The Legislature of the USA is known as the 

A) Commons B) Congress
C) Parliament D) Senate
 
Answer & Explanation Answer: B) Congress

Explanation:

The US Congress consists of two bodies 

a) the Senate and   b) the House of Representatives. The Senate, composed of 100 members (two Senators from each State), is a powerful body and exercises a very real influence in national affairs.

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Filed Under: Indian Politics

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Q:

A series of instructions that tells a computer what to do and how to do it is called a _______

A) Program B) Command
C) User response D) Processor
 
Answer & Explanation Answer: A) Program

Explanation:
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Filed Under: Computer
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Q:

World Suicide Prevention Day (WSPD) is observed every year on _______ 

A) 1 September B) 7 September
C) 9 September D) 10 September
 
Answer & Explanation Answer: D) 10 September

Explanation:

World Suicide Prevention Day (WSPD) is an awareness day celebrated on 10 September every year, keeping in mind the end goal to give overall commitment and action to anticipate suicides, with various activities around the world since 2003.

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Filed Under: Important Days and Years
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Q:

Answer the Following Puzzle

Number Puzzles Questions and Answers

A) 22 B) 33
C) 44 D) 55
 
Answer & Explanation Answer: A) 22

Explanation:

In each circle,lower number equals the product of the top two numbers, subtracting 3 for the left hand circle, 4 for the middle, and 5 for the right hand circle.

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Filed Under: Number Puzzles

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Q:

It travels over land and water. Who invented the HOVERCRAFT?

A) C. Cockerell B) S. Sperrow
C) O. Stricheg D) T. Henman
 
Answer & Explanation Answer: A) C. Cockerell

Explanation:
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Filed Under: Inventions

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Q:

Eminent poet, litterateur and Jnanpith awardee C. Narayana Reddy who passed away in June 2017, he was a famous poet of _________ and ____________ language.

A) Kannada and Hindi B) Telugu and Malayalam
C) Hindi and Urdu D) Telugu and Urdu
 
Answer & Explanation Answer: D) Telugu and Urdu

Explanation:

Eminent poet, litterateur and Jnanpith awardee C. Narayana Reddy, popularly known as CiNaRe, passed away.  CiNaRe was known for his use of Telugu in its pure form, and would not be swayed by filmmakers on the use of the language. He was awarded the Padma Shri in 1977 and the Padma Bhushan in 1992. His compilation of poems, titled ‘Viswambhara’, got him the Jnanpith award in 1988. In 1997, he was nominated as a Member of the Rajya Sabha.

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Filed Under: Famous Personalities
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Q:

The Sunderbans are found in

A) The Luni Basin B) Godavari Delta
C) Ganga Delta D) Mahanadi Delta
 
Answer & Explanation Answer: C) Ganga Delta

Explanation:

These mangrove or tidal forests are found in the submerged coastal plains of the Ganga. The name comes from the abundant sundari trees found here. 

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Filed Under: Indian Geography

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