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The Isotope C-12 is present in abundance of ?

A. 96.9%
B. 97.6%
C. 98.89%
D. 99.7%

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Electronic configuration is distribution of?

A. Protons
B. Neutrons
C. Electrons
D. Position

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Which one of the following is most penetrating?

A. Electron
B. Proton
C. Alpha Particle
D. Neutron

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How many sub shells in a L shell?

A. One
B. Two
C. Three
D. Four

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In an atom number of protons and neutrons are added to obtain

A. Number of Electrons
B. Number of Protons
C. Atomic Number of Element
D. Number of Isotopes

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If nucleon number of potassium is 39 and it’s atomic number is 19 then number of neutrons will be?

A. 39
B. 19
C. 20
D. 29

Read More Details about this McqsIf nucleon number of potassium is 39 and it’s atomic number is 19 then number of neutrons will be?

A piece of matter in pure form is termed as

A. Radical
B. Mixture
C. Compund
D. Substance

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If proton number is 19 electron configuration will be?

A. 2,8,9
B. 2,8,8,1
C. 2,8,1
D. 2,8,3

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Ethyl Alcohol is prepared by

A. Ibne Sina
B. Al Razi
C. Al Beruni
D. Jaber Bin Hayan

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Which of the following is a homo atomic Molecule?

A. H2
B. NH3
C. H2O
D. CO2

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