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Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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Methane contributes towards global warming so it is called a _________________ gas.

 

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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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Safety matches contain

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Answer & Explanation Answer: B) Phosphorus

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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
C) Both Polyurethane and Polyethylene D) Neither Poly urethane nor Polyethylene
 
Answer & Explanation Answer: B) Only Polyethylene

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Which of the following is NOT a compound?

 

A) Ammonia B) Milk
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Answer & Explanation Answer: B) Milk

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