Questions

Q:

The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration

A) increases 2 times B) increases 3 times
C) decreases 1000 times D) decreases 100 times
 
Answer & Explanation Answer: C) decreases 1000 times

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Q:

In which of the following situations is mechanical energy most likely to be conserved?

A) A feather falls from the sky. B) A football flies through the air.
C) A hockey player digs his skates into the ice. D) A skateboard rolls into the grass.
 
Answer & Explanation Answer: B) A football flies through the air.

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Filed Under: Physics
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Q:

In the equation of motion 2as = v2 - u2, s represents _________________.

A) speed B) displacement  
C) velocity D) acceleration
 
Answer & Explanation Answer: B) displacement  

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Q:

­ Indian Constitution came into force on

A) 15th August 1947 B) 26th January 1950
C) 26th November 1948 D) 6th November 1948
 
Answer & Explanation Answer: B) 26th January 1950

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Q:

What is the full form of the Indian Political Party "NCP"?

A) Nationalist Congress Party B) National Congress Party
C) National Communist Party D) Nationalist Communist Party
 
Answer & Explanation Answer: A) Nationalist Congress Party

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Q:

The method of soil conservation in which stones, grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?

A) Mulching B) Contour barriers
C) Rock dam D) Terrace farming
 
Answer & Explanation Answer: B) Contour barriers

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Q:

Growing agricultural crops between rows of planted trees is known as

A) Social forestry B) Jhum
C) Taungya system D) Agro forestry
 
Answer & Explanation Answer: C) Taungya system

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Q:

Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?

A) Greenhouse effect B) Solid wastes
C) Pollution D) Deforestation
 
Answer & Explanation Answer: C) Pollution

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