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Q:

Sound waves can not travel through a

 

A) copper wire placed in air B) silver slab placed in air
C) glass prism placed in water D) wooden hollow pipe placed in vacuum
 
Answer & Explanation Answer: D) wooden hollow pipe placed in vacuum

Explanation:

Sound is a kind of energy created when something vibrates. When this vibration reaches an ear, it is translated into what we recognize as a sound. Sound vibration must travel through matter. Therefore, it can travel through air and water but not through vacuum.

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Filed Under: Physics
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1 18021
Q:

In which of the following, functional group isomerism is not possible?

 

A) Alcohols B) Aldehydes
C) Alkyl halides D) Cyanides
 
Answer & Explanation Answer: C) Alkyl halides

Explanation:

The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of chemical compounds derived from alkanes containing one or more halogens.Halogens can’t form more than one bond in the context of common organic compounds and can’t form multiple bonds to carbon.

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Filed Under: Chemistry
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1 17998
Q:

Select the synonym of

antagonize

A) alienate B) placid
C) sync D) serene
 
Answer & Explanation Answer: A) alienate

Explanation:
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Filed Under: English
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0 17995
Q:

Improve the bracketed part of the sentence.

If I (just had) the money I would have bought the car.

A) have had B) was having
C) had D) no improvement
 
Answer & Explanation Answer: C) had

Explanation:
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Filed Under: English
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0 17991
Q:

The gases used in different types of welding would include

A) oxygen and hydrogen B) oxygen and acetylene
C) oxygen, acetylene and argon D) oxygen, hydrogen, acetylene and nitrogen
 
Answer & Explanation Answer: B) oxygen and acetylene

Explanation:
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Filed Under: General Science

98 17986
Q:

In HTML, ______________ is at the bottom of the page and usually contains disclaimers, copyright information etc.

 

A) Header area B) Menu bar
C) Body of the page D) Footer area
 
Answer & Explanation Answer: D) Footer area

Explanation:
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Filed Under: Computer
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18 17984
Q:

Rearrange the parts of the sentence in correct order.

The arbitration
P - ­dented China's interests
Q - ­in multiple ways
R - ­award has, nevertheless,

A) RPQ B) RQP
C) PQR D) QPR
 
Answer & Explanation Answer: A) RPQ

Explanation:
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Filed Under: English
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0 17968
Q:

Improve the bracketed part of the sentence.

 

Whatever said and done, (not less vital) is the future of the border separating Northern Ireland from the Irish Republic.

 

A) any less vital B) more less vital
C) no less vital D) No improvement
 
Answer & Explanation Answer: C) no less vital

Explanation:
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Filed Under: English
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0 17961