Sawaal
3
Q:

Absolute Zero is defined as

A) The temperature at which all molecular motion ceases B) At which water boils at 298K
C) At which liquid Helium boils D) At which the volume becomes zero

Answer:   A) The temperature at which all molecular motion ceases



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Subject: Chemistry
Exam Prep: Bank Exams
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The percentage of nitrogen in the air is about

A) 74% B) 76%
C) 78% D) 80%
 
Answer & Explanation Answer: C) 78%

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Methane contributes towards global warming so it is called a _________________ gas.

 

A) poisonous B) carcinogenic
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Answer & Explanation Answer: D) greenhouse

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Which of the following is a metal?

 

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Answer & Explanation Answer: D) No option is correct

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Which of the following group is NOT Dobereiner Triads?

 

A) Li, Na, K B) N, P Au
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Answer & Explanation Answer: B) N, P Au

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Safety matches contain

A) Sulphur B) Phosphorus
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Answer & Explanation Answer: B) Phosphorus

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Air ___________________ are the substances which contaminate the air.

A) Reactants B) Irritants
C) Resistants D) Pollutants
 
Answer & Explanation Answer: D) Pollutants

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By using which foam the Researchers from Indian Institute of Technology – Bombay have made a low cost piezo resistive vibration sensor?

A) Only Polyurethane B) Only Polyethylene
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Answer & Explanation Answer: B) Only Polyethylene

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Which of the following is NOT a compound?

 

A) Ammonia B) Milk
C) Sodiumchloride D) Chalk
 
Answer & Explanation Answer: B) Milk

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