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Q:

Which one of the following is present in the largest amount in terms of percent by mass in the earth's crust

A) Silicon B) Oxygen
C) Carbon D) Calcium
 
Answer & Explanation Answer: B) Oxygen

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Filed Under: World Geography

Q:

Which is the closest star to Earth

A) Sirius B) Sun
C) Rigel D) Deneb
 
Answer & Explanation Answer: B) Sun

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Filed Under: World Geography

Q:

Which of the following is the farthest planet to the Sun

A) Mars B) Jupitar
C) Neptune D) Earth
 
Answer & Explanation Answer: C) Neptune

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Filed Under: World Geography

Q:

Which planet was named after the Roman God Zeus

A) Mars B) Earth
C) Venus D) Jupiter
 
Answer & Explanation Answer: D) Jupiter

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Filed Under: World Geography

Q:

Which among the following planets is smaller than the Earth

A) Neptune B) Venus
C) Saturn D) Uranus
 
Answer & Explanation Answer: B) Venus

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Filed Under: World Geography

Q:

A particle which is four times in mass and two times in charge that of proton is

A) helium atom B) an alpha particle
C) deuteron D) tritium
 
Answer & Explanation Answer: B) an alpha particle

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Filed Under: Chemistry

Q:

The activity of rradioisotope change with

A) temperature B) pressure
C) chemical environment D) None of these
 
Answer & Explanation Answer: D) None of these

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Filed Under: Chemistry

Q:

Who is the father of modern chemistry?

A) Priestley B) Lavoisier
C) Dalton D) Mendeleeff
 
Answer & Explanation Answer: B) Lavoisier

Explanation:

Antoine-Laurent de Lavoisier, a french chemist is considered as the "Father of Modern Chemistry."

who_is_the_father_of_modern_chemistry1538547478.jpg image

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Filed Under: Chemistry
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