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Q:

An element which is preserved under water is 

A) sodium B) sulphur
C) red phosphorus D) white phosphorus
 
Answer & Explanation Answer: D) white phosphorus

Explanation:

White phosphorus undergoes spontaneous combustion when exposed to air. In order to prevent this spontaneous ignition, it is preserved under water. 

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Filed Under: Chemistry

Q:

Which of the following is called 'the King of Chemicals' ?

A) Nitric acid B) Hydrochloric acid
C) Silver nitrate D) Sulphuric acid
 
Answer & Explanation Answer: D) Sulphuric acid

Explanation:

Sulphuric acid is called the King of Chemicals because it is used in the preparation of a very large number of other useful chemicals such as hydrochloric acid, nitric acid, dyes, drugs etc. In fact the annual production of shulpuric acid in a country is a measure of the economy of the country.

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Filed Under: Chemistry

Q:

which city has the Metro with Most stations?

Answer

New York City Subway has 468 stations (277 of which are under ground) in a network covering 370 km (230 miles)

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Subject: General Awareness

Q:

Who is the First Indian Woman to reach the summit of Mt. Everest?

Answer

Bachendri Pal, an employee of Tata Iron and Steel Co. Ltd at Jamshedpur, became the first Indian and the fifth woman in the world to reach the summit of Mt. Everest on May 23, 1984.

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Subject: General Awareness

Q:

Which is the Largest Slum in the world ?

Answer

Neza-Chalco-Itza is one of Mexico City's barrios(slums). Most of its approximately four million inhabitants live there illegally. Mexico City's slums have been growing for more than 100 years, after the railways allowed new industry to beign in the city. 

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Subject: General Awareness

Q:

Who is the Richest investor as per March 2013?

Answer

Warren Edward Buffett(USA), chairman of Berkshire Hathaway, is the world's richest investor, estimated to be worth $53.5 billion as of march 2013.

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Subject: General Awareness

Q:

Water table in most parts of the State has gone down to such a level that its extraction for irrigation purposes is not economical any more.

 

Courses of action:

I. Extraction of ground water for any purpose in the State should be banned for some time in order to replenish the water table.

II. The Government should make provisions for alternative methods of irrigation so that the farmers are not compelled to use ground water.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: B) If only course of action II follows

Explanation:

I is impractical. Water is essential for life to go on. II is sensible, especially when using ground water is proving to be uneconomical

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Filed Under: Statement and Courses of Action

Q:

The number of dropouts in govt schools has significantly increased in the urban areas over the past few years. 

 

Courses of action:

I. The govt should immediately close down all such schools in the urban areas where the dropout goes beyond 20 per cent

II. The parents of all the students who dropped out of the govt schools in urban areas should be punished.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: D) If both courses of action I and II follow

Explanation:

Both are extreme courses of action.

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Filed Under: Statement and Courses of Action