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Recent questions tagged Probability-mcq

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Q: How can a nucleus lose electrons (`beta`-particles) even though free electrons are not present in it?
    How can a nucleus lose electrons ( β β -particles) even though free electrons are not present in it? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: What is the total life of a radioactive element ?
    What is the total life of a radioactive element ? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: What is the source of radioactive `CO_(2)` in the atmosphere?
    What is the source of radioactive C O 2 C in the atmosphere? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: What are transactinides ? To which block do they belong ?
    What are transactinides ? To which block do they belong ? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: Why is synthesis of transactinides difficult ?
    Why is synthesis of transactinides difficult ? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: Name the fundamental particle which exists in the nucleus with protons and neutrons.
    Name the fundamental particle which exists in the nucleus with protons and neutrons. Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: Which radioactive metal is used as an ingredient of atomic explosive weapons ?
    Which radioactive metal is used as an ingredient of atomic explosive weapons ? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: `C-14` is formed in the upper atmosphere. Why it does not occur at the ground level ?
    C − 14 C is formed in the upper atmosphere. Why it does not occur at the ground level ? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
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Q: water is polar, because of
    water is polar, because of Select the correct answer from above options...
asked Nov 29, 2021 in Education by JackTerrance
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Q: Smallest Cyclic silicates have ..............number of tetrahedrons joined together (A) 2 (B) 3 (C) 6 (D) 8
    Select the correct answer from above options...
asked Nov 29, 2021 in Education by JackTerrance
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