Q.

The number of protons, electrons and neutrons in a molecule of heavy water are respectively

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a

11,10,10

b

8,10,11

c

10,11,10

d

10,10,10

answer is B.

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Detailed Solution

The formula of heavy water is D2O deuterium contains 1 proton, 1 neutron & 1 electron
Oxygen contains 8 protons, 8 neutrons & ‘8’ electrons
Hence,  D2O containing  protons, 10e¯.s and 10 neutrongs

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The number of protons, electrons and neutrons in a molecule of heavy water are respectively