Questions

Q:

Order of basicity of amines in gaseous state?

A) 2'> 1'> 3' > NH3 B) 3' > 2' > 1'> NH3
C) 1' > 2' > 3'> NH3 D) 2'> 3'> 1' > NH3
 
Answer & Explanation Answer: B) 3' > 2' > 1'> NH3

Explanation:

The order of basicity in ammonia is different in gaseous phases vs. aqueous phases due to hydrogen bonding.

 

So in gaseous phases it's the well known: 3' > 2' > 1'> NH3. Just so we're on the same page, this is due to the inductive effect of electron donating alkyl groups--they destabilize the lone pair on nitrogen atom, making nitrogen more basic.

 

But in aqueous phase, the order is slightly different: 2'> 1'> 3' > NH3.

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Filed Under: Chemistry
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Q:

The lines joining the place of equal intensity of seismic waves are known as

A) Seisimice line B) Isoseisimic line
C) Isogonal line D) Isogonic line
 
Answer & Explanation Answer: B) Isoseisimic line

Explanation:
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Filed Under: World Geography

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Q:

In 1991 the Soviet Union collapsed MAINLY because

A) the United States was a better country and capitalism ruled the world. B) a civil war erupted in the southern republics.
C) years of economic stagnation left it far behind Western and Asian countries. D) key Soviet leaders were assassinated.
 
Answer & Explanation Answer: B) a civil war erupted in the southern republics.

Explanation:
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Filed Under: World History
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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

 

People are now either exposed to the very best of their inner circle and the world, ________ to the worst — articles that look to shock, to provoke rage and put a lens on everything that is wrong _________ the world. Imperceptibly, it goes unsaid that often __________ pieces of ‘news’ fail to actually provide a constructive solution. The effect of such a disparity _________ to the same effect as news of TV and newspapers — a feeling that what we see does not ____________ our lives.

 


we see does not ____________ our lives.

 

A) reflects B) reflective
C)  reflection D)  reflect
 
Answer & Explanation Answer: D)  reflect

Explanation:
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Filed Under: English
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Q:

Political right does NOT include which of the following

A) Right to Vote B) Right to Life
C) Right to contest in election D) Right against exploitation
 
Answer & Explanation Answer: B) Right to Life

Explanation:
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Filed Under: Indian Politics

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Q:

The output quality of a printer is measured by

A) Dots per line B) Dots printed per unit time
C) Dots per inch D) All of the above
 
Answer & Explanation Answer: C) Dots per inch

Explanation:

DPI [Dots Per Inch] is a measurement of output quality of printer resolution. It represents number of ink dots the printer can place in an area of one square inch. The lesser the DPI the less sharper the image and vice versa.

 

Therefore, a printer that may have 400 DPI, a printer that can print 400 x 400 per square inch or 1,60,000 dots per inch.

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Q:

For purifying drinking water alum is used

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

In purifying drinking water alum is used for coagulation of mud particles.

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Subject: General Science
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Q:

The period after parturition in which animal produces milk is called as _____

A) Calving period B) Lactation period
C) Dry period D) Conception
 
Answer & Explanation Answer: B) Lactation period

Explanation:
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