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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:

Natural radioactivity was discovered by

A) Rutherford	B) Becquerel
C) Curie	D) Schmidt

Answer & Explanation Answer: B) Becquerel

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Filed Under: Chemistry

Q:

The discovery of neutron became very late because

A) it is present in nucleus	B) it is a fundamental particle
C) it does not move	D) it does not carry any charge

Answer & Explanation Answer: D) it does not carry any charge

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Filed Under: Chemistry

Q:

Neutron was discovered by

A) J.J.Thomson	B) Chadwick
C) Rrutherford	D) Priestley

Answer & Explanation Answer: B) Chadwick

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Filed Under: Chemistry

Q:

Cathode rays have

A) mass only	B) charge only
C) no mass and no charge	D) mass and charge both

Answer & Explanation Answer: D) mass and charge both

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Filed Under: Chemistry

Q:

The credit for the discovery of transuranic element goes to

A) Hahn	B) Rutherford
C) Seaborg	D) Curie

Answer & Explanation Answer: C) Seaborg

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Filed Under: Chemistry

Q:

Earlist thermometerr was developed by

A) Celsius	B) Fahrenheit
C) Kelvin	D) Galileo

Answer & Explanation Answer: D) Galileo

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Filed Under: Physics

Q:

Which of the following physical quantities do not have same dimensions

A) Force and Pressure	B) Work and Energy
C) Impulse and momentum	D) Weight and Force

Answer & Explanation Answer: A) Force and Pressure

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Filed Under: Physics

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