Questions

Q:

What is the full form of "RADAR" ?

A) Radio Detecting and Ranging B) Region Device and Ranging
C) Radio Detect and Rangs D) Radio Device and Ranging
 
Answer & Explanation Answer: A) Radio Detecting and Ranging

Explanation:
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Q:

What one word has the most letters in it?

Answer

ALPHABET is the only has the most letters in it.


 


Alphabet has all the 26 letters from A - Z. 


 


Hence, ALPHABET is one word that has the most letters in it.

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Q:

Which of the following carbon compounds is used as a fire- extinguisher?

A) Carbon disulphide B) Chloroform
C) Carbon tetrachloride D) Methyl ene chloride
 
Answer & Explanation Answer: C) Carbon tetrachloride

Explanation:

Vapour of carbon tetra chloride ccl4 is non-inflammable and is heavier than air. Hence it is used as a fire extinguisher under the trade name of pyrene.

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Q:

The outer electron configuration of Gd (Atomic No : 64) is

1. 4f75d16s2

2. 4f35d56s2

3. 4f85d06s2

4. 4f45d46s2

Answer

Answer : 1


 


Sol :


1. 4f75d16s2

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Subject: Chemistry Exam Prep: AIEEE

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Q:

Rearrange the parts of the sentence in correct order.


Williamson shoveled scorn on

P-the low-income white Republican voters who,
Q-were most responsible for the rise of Trump
R-as he saw it,

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

Explanation:
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Q:

Excretion is best described as the removal of

A) Undigested material from the digestive tract B) Metabolic wastes from a cell
C) Toxic wastes by the process of cyclosis D) Water molecules from dipeptide hydrolysis
 
Answer & Explanation Answer: B) Metabolic wastes from a cell

Explanation:

Excretion is best described as the removal of Metabolic wastes from a cell.

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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

Explanation:
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Q:

Which of the following is not a compound?

A) Brass B) Quick lime
C) Marble D) Soda ash
 
Answer & Explanation Answer: A) Brass

Explanation:

Among the given options Brass is not a compound. Since it is an alloy, it is a mixture. It is a mixture of copper and zinc.

Which_of_the_following_is_not_a_compound1558074260.jpg image

 

 

 

The smallest part of a compound is called a molecule. It has a unique composition that is always the same.

 

Compound is a substance that consists of two or more elements. 

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