Questions

Q:

What is the maximum  number of states of matter?

A) Three B) Four
C) Five D) Variable
 
Answer & Explanation Answer: C) Five

Explanation:

There   are five known   states   of matter:    solids,    liquids,    gases, plasma and Bose-Einstein condensates.  The  main  difference in the structures of each state is in the densities of the particles.

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Q:

The common name of sulphur is

A) Freon B) galena
C) lime D) brimstone
 
Answer & Explanation Answer: D) brimstone

Explanation:
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Q:

Lime water turns milky when carbon dioxide is passed through it. It is due to the formation of

A) Calcium Carbonate B) Barium Carbonate
C) Calcium Hydrogen Carbonate D) Calcium Oxide
 
Answer & Explanation Answer: A) Calcium Carbonate

Explanation:
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Q:

How long is a term in the house of representatives?

A) 5 B) 2
C) 4 D) 6
 
Answer & Explanation Answer: B) 2

Explanation:

Members of the House of Representatives serve two-year terms and are considered for reelection every even year.

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Q:

Scientific medicine typically develops in

Answer

Scientific medicine typically develops in industruial societies.

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Q:

Which voting method was discontinued in 2000?

A) Punch-card ballots B) Proxy Voting
C) Postal Voting D) Roll Call
 
Answer & Explanation Answer: A) Punch-card ballots

Explanation:

Punch-card ballots voting method was discontinued as a result of the Help America Vote Act because of some issues in the counting process by the tabulating machines.

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Q:

Which Indian city is known as 'The City of Pearls' as once it was the only global center of large diamonds and natural pearls made?

A) Hyderabad B) Jodhpur
C) Amdavad (Ahmedabad) D) Chennai
 
Answer & Explanation Answer: A) Hyderabad

Explanation:
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Q:

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. What is the ratio of the length of a rectangle to the side of a square?

I. The area of the square is 576 sq cm and the area of the rectangle is 600 sq cm.

II. The breadth of the rectangle is half the side of the square.

A) The data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question. B) The data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
C) The data in either Statement I alone are in Statement II alone are sufficient to answer the question. D) The data in both the Statements I and II are not sufficient to answer the question.
 
Answer & Explanation Answer:

Explanation:

From statement I, Area of square = 576 sq cm
Side of square = 24 cm
Area of rectangle = l × b
l × b = 600 sq cm
From statement II, Suppose the breadth of the
rectangle is x. Then side of the square = 2x
Combining both the information, we have
x =12 cm
Now, l × 12 = 600

l=60012=50 cm

Required ratio = 5024=2512=25:12

Both the statements together are sufficient.

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