Questions

Q:

There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number?

A) 22 B) 7
C) 37 D) 15
 
Answer & Explanation Answer: C) 37

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Q:

How many groups and periods are present in the Modern Periodic Table?

A) 9 groups, 9 periods B) 7 groups, 8 periods
C) 18 groups, 7 periods D) 8 groups, 7 periods
 
Answer & Explanation Answer: C) 18 groups, 7 periods

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Q:

What is the pH value of human blood?

A) 8.3 B) 6.8
C) 7.4 D) 6
 
Answer & Explanation Answer: C) 7.4

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Q:

Which of the following is NOT a radioactive element?

A) Uranium B) Plutonium
C) Titanium D) Thorium
 
Answer & Explanation Answer: C) Titanium

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Q:

Gandhiji's first Satyagraha in India was held at __________

A) Champaran B) Ahmedabad
C) Kheda D) Allahabad
 
Answer & Explanation Answer: A) Champaran

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Q:

Which of the following increased in the 1920's?

A) Farmers' debt B) Domestic demand for U.S. farm products
C) Prices for farm productsc) D) Foreign demand for U.S. farm products
 
Answer & Explanation Answer: A) Farmers' debt

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Q:

Who invented the bifocal glasses?

A) Thomas Alva Edison B) Benjamin franklin
C) Evangelista D) Isaac Newton
 
Answer & Explanation Answer: B) Benjamin franklin

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Q:

In which year in India, was the demonetisation announcedfor the first time?

A) 1978 B) 1999
C) 1946 D) 1962
 
Answer & Explanation Answer: C) 1946

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