Questions

Q:

Which phase change is an example of an exothermic process?

A) Liquid to Solid B) Gas to Solid
C) Gas to Liquid D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Processes that require or give off heat will be limited to changes of state, known as phase changes, and changes in chemical constitution, or chemical reactions. Changes of state involve a solid melting, a liquid freezing, a liquid boiling or a gas condensing.

 

An exothermic process is one that gives off heat, which is transferred to the surroundings. An endothermic process is a reaction which heat has to be supplied to the system from the surroundings.

 

Here in all the given options, heat is taken away from them to change there phase. 

Liquid to Solid --- Freezing

Gas to Liquid --- Condensation

Gas to Solid --- Deposition 

are all examples of exothermic processes.

 

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Filed Under: Physics
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Q:

Lady Tata Memorial Awards are given for research in 

A) Leukaemia B) Biodiversity
C) Tuberculosis D) Environmental Protection
 
Answer & Explanation Answer: A) Leukaemia

Explanation:
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Filed Under: General Awareness

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Q:

Tectonic activity

A) Breaks and bends the crustal rocks B) Forms and bends the crystal rocks
C) Reshapes by bending the crustal D) None of these
 
Answer & Explanation Answer: A) Breaks and bends the crustal rocks

Explanation:
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Filed Under: World Geography

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Q:

Who is a more senior creditor, a bondholder or stockholder?

Answer

According to the classification, the claim of bond holder should be accounted first. After fulfilling all the claims of bond holder company should look after the stock holder.

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Subject: Finance

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Q:

If price of an article decreases from P1 to Rs 25, quantity demanded increases from 900 units to 1200 units. If point elasticity of demand is ­2 find P1?

A) Rs. 20 B) Rs. 30
C) Rs. 25 D) Rs. 35
 
Answer & Explanation Answer: B) Rs. 30

Explanation:
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Filed Under: Physics

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Q:

The disease Goitre is caused in persons who do not have in their diet sufficient

A) calcium B) sodium
C) iodine D) iron
 
Answer & Explanation Answer: C) iodine

Explanation:

Goitre is characterized by the swelling of the neck region. This is due to the enlargement of the thyroid gland which secretes hormone thyroxine. Thyroxine has iodine as an integral part of it. If there is not sufficient iodine in one's  diet, the thyroid gland swells up.

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Filed Under: Biology

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Q:

Which of the folowing is not a true snake?

A) Glass snake B) Sea Snake
C) Tree Snake D) Blind Snake
 
Answer & Explanation Answer: A) Glass snake

Explanation:

Glass Snake is a liZard.

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Filed Under: Animals and Birds

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Q:

The first Asian Games were held in

A) Manila B) Tokyo
C) Jakarta D) New Delhi
 
Answer & Explanation Answer: D) New Delhi

Explanation:
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Filed Under: Sports

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