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Q:

An atom can achieve octet by ______.

 

I. sharing electron

II. gaining electron

III. losing electron

 

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: D) All I, II and III

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Filed Under: Chemistry
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Q:

Read each sentence to find out whether there is any error in any part

Mr. Joshi was, however, sure(a) that the idea would never work(b) in practice(c). No error.(d)

A) a B) b
C) c D) d
 
Answer & Explanation Answer: D) d

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Filed Under: English
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Q:

What are demand-paging and pre-paging?

Answer

With demand paging, a page is brought into memory only when a location on that page is actually referenced during execution. With pre-paging, pages other than the one demanded by a page fault are brought in. The selection of such pages is done based on common access patterns, especially for secondary memory devices.

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Subject: Operating Systems

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Q:

What is the purpose of adding Gypsum to the cement?

 

A) For lubrication B) To slow down its rate of setting
C) To increase its rate of setting D) To make it strong
 
Answer & Explanation Answer: B) To slow down its rate of setting

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Q:

How many moles are there in 140g of Si (atomic mass of silicon is 28)

A) 5 B) 10
C) 28 D) 140
 
Answer & Explanation Answer: A) 5

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Q:

Select the synonym of

 

to moan

 

A) to sigh B) to beam
C) to smirk D) to simper
 
Answer & Explanation Answer: A) to sigh

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Filed Under: English
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Q:

Rearrange the parts of the sentence in correct order.

 

A truly free nation will

P-will fail in the marketplace of ideas
Q-destruction as a bad idea that
R-confidently view even its advocated

 

A) QRP B) QPR
C) PRQ D) RQP
 
Answer & Explanation Answer: D) RQP

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Q:

Ethanol is converted into ethoxy ethane,

A) by heating excess of ethanol with conc. H2SO4 at 140°C B) by treating with conc. H2SO4 at room temperature
C) by treating with conc. H2SO4 at 273 K D) by heating Ethanol with excess of conc. H2SO4 at 443 K
 
Answer & Explanation Answer: A) by heating excess of ethanol with conc. H2SO4 at 140°C

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