Questions

Q:

What are the two types of pure substances?

Answer

An atom is the smallest particle of a substance. Chemical substances are divided into two major groups. They are


1. Pure Substances (and)


2. Mixtures.


 


There are two types of pure substances that are Elements and Compounds.


 


Elements : An element is a substance that is made up of only one kind of atoms and cannot be broken down into simpler substances by chemical means. Metals and Non- metals come under elements.


Examples of elements are Iron, Silver, Gold, Mercury etc.


 


Compounds : A Compound is a substance that is formed when two or more elements combine chemically.


Examples of compounds are Water, Carbon dioxide, methane, vinegar etc.


 


Mixtures : A Mixture is formed when two or more substances mixed together but not chemically combined.


Example: Air.

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Which is an example of an expressed power congress holds?

A) declaring war B) maintaining an army
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:
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Q:

What are necessary conditions for dead lock?

Answer

1. Mutual exclusion (where at least one resource is non-sharable)


2. Hold and wait (where a process holds one resource and waits for other resource)


3. No preemption (where the resources can’t be preempted)


4. Circular wait (where p[i] is waiting for p[j] to release a resource. i= 1,2,…n


j=if (i!=n) then i+1


else 1 )

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Q:

The bankruptcy of which company initiated the Panic of 1873?

A) Republic Steel Company B) Jay Cooke & Company
C) Standard Oil Company D) Century Building Society
 
Answer & Explanation Answer: B) Jay Cooke & Company

Explanation:

Jay Cooke & Company, a major component of the United States banking establishment, found itself unable to market several million dollars in Northern Pacific Railway bonds in september 1873. Cooke's firm, like many others, had invested heavily in the railroads.

 

Hence, the bankruptcy of Jay Cooke & company initiated the Panic of 1873.

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Filed Under: World History
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Q:

What is keyword contextual targeting?

Answer

It is when themes of keywords are matched by AdWords to relevant content on various websites that run Google ads.

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Q:

In the given question, a statement with a single blank is given. Choose the most effective word from the given options to complete the sentence meaningfully.

One has to be very _______ during the monsoons as the road becomes slippery.

A) Smart B) Cautious
C) Presentable D) Prepared
 
Answer & Explanation Answer: B) Cautious

Explanation:

'Cautious' can be used to make the sentence meaningful which means alert or be careful. The context of the statement is that of the monsoon season being a bit troublesome due to slippery roads which need to be navigated with care. 'Prepared' and 'smart' may appear to be true but we need to choose the most suitable response which in this case is 'cautious'. Hence, 'cautious' is the correct answer.

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Q:

Which stage of cellular respiration produces the most ATP?

A) Glycolysis B) Kreb's cycle
C) Electron transport chain D) All the above
 
Answer & Explanation Answer: C) Electron transport chain

Explanation:

There are 3 stages in cellular respiration. They are:

1. Glycolysis

2. Kreb's cycle

3. Electron transport chain

 

Here, Glycolysis produces only 2 ATP whereas Kreb's cycle produces no ATP. Electron transport chain of the cellular respiration produces the maximum ATP.

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Q:

The highest cricket ground in world is at

A) London B) India
C) New Zealand D) Australia
 
Answer & Explanation Answer: B) India

Explanation:

The highest cricket ground in world is in India at Himachal Pradesh. Himachal Pradesh Cricket Association Stadium, Dharamshala, is situated at 4780 feet above the sea level and is one of the most beautiful stadium in the world.

the_highest_cricket_ground_in_the_world_is1550034159.jpg image

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