Top 100+ questions in Education

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Q: The atomic mass of `.^(16)O` is `15.995` amu while the individual masses of proton and neutron are `1.0073` amu and `1.0087` amu respectively. The mas

The atomic mass of . 16 O . is 15.995 15.995 amu while the individual masses of proton and neutron are 1 ... of the oxygen nucleus. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: The isotopic composition of rubidium is `Rb^(85):73%` and `Rb^(87):28%Rb^(87)` is weakly radioactive and decay by `beta^(c-)-` emission with a decay c

The isotopic composition of rubidium is R b 85 : 73 % R and R b 87 : 28 % R b 87 R is ... pollucite stating any assumption made. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: The isotopic masses of `._(1)^(2)H` and `._(2)^(4)He` are `2.0141` and `4.0026` amu respectively and the velocity of light in vacuum is `2.998xx10^(8)

The isotopic masses of . 2 1 H . and . 4 2 H e . are 2.0141 2.0141 and 4.0026 4.0026 amu respectively and the ... mole of . 4 2 H e . Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: The radioactive isotope `._(27)^(60)Co` which has now replaced radium in the treatment of cancer can be made by `a(n,p)` or `(n, gamma)` reaction. For

The radioactive isotope . 60 27 C o . which has now replaced radium in the treatment of cancer can be made by a ( n , ... in s − 1 s . Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: A piece of wood from an archaeological source shows a `.^(14)C` activity which is `60%` of the activity found in fresh wood today. Calculate the age o

A piece of wood from an archaeological source shows a . 14 C . activity which is 60 % 60 of the activity found in ... C = 5570 . year) Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: What is a nuclear fission reaction ? Explain the principle of atomic bomb and working of a nuclear reactor to produce electricity.

What is a nuclear fission reaction ? Explain the principle of atomic bomb and working of a nuclear reactor to produce electricity. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: What is meant by a fissiionable isotope? How are such isotopes produced artifically ? Give an example.

What is meant by a fissiionable isotope? How are such isotopes produced artifically ? Give an example. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: In the neutron`-`induced fissioin reaction of `._(92)U^(235)` one of the products if `._(37)Rb^(95),` in this mode, another nuclide and three neutrons

In the neutron − - induced fissioin reaction of . 92 U 235 . one of the products if . 37 R b 95 , ... produced. Identify the nuclide. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: Explain the principle of `:` ltbr. `a.` Activation analysis `b.` Breeder reactor

Explain the principle of : : ltbr. a . a Activation analysis b . b Breeder reactor Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: Complete the following nuclear changes. (a) `._(42)^(96)Mo (..,n) ._(43)^(97)Tc` (b) `.. (alpha, 2n) ._(85)^(211)At` (c) `._(25)^(55)Mn (n, gamma)...`

Complete the following nuclear changes. (a) . 96 42 M o ( . . , n ) . 97 43 T c . (b) . . ( α , 2 n ) . ... 235 U ( α , β − ) . . . Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: Complete the equations for the following nuclear processes: (a)`._(17)^(35) Cl + ._(1)^(0)n rarr... + ._(2)^(4)He` (b) `._(92)^(235)U + ._(0)^(1) n ra

Complete the equations for the following nuclear processes: (a) . 35 17 C l + . 0 1 n → ... + . 4 2 H e . (b) . ... u ( α , β − ) ... . Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: Calculate the binding energy per nucleon for `C^(12),N^(14), O^(16)`, and comment on their relative magnitudes. Masses of proton and neutron are `1.00

Calculate the binding energy per nucleon for C 12 , N 14 , O 16 C , and comment on their relative magnitudes. Masses ... 931 M e V ) ( Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: The `beta-` activity of a sample of `CO_(2)` prepared form a contemporary wood gave a count rate of `25.5` counts per minute `(cp m)`. The same of `CO

The β − β activity of a sample of C O 2 C prepared form a contemporary wood gave a count rate of 25.5 25 ... which is 4000 year old? Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: How is `C^(14)` produced in nature and what happens to it subsequently? Give equations for these processes.

How is C 14 C produced in nature and what happens to it subsequently? Give equations for these processes. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: What do you understand by tracers ? Give an example of a tracer that can be used in determining the mechanism of a chemical reaction.

What do you understand by tracers ? Give an example of a tracer that can be used in determining the mechanism of a chemical reaction. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: What are synthetic elements ? Mention two synthetic elements and write the nuclear equations leading to their synthesis.

What are synthetic elements ? Mention two synthetic elements and write the nuclear equations leading to their synthesis. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: What is meant by thermonuclear reactions and why are they so called ? Why are these reactions not useful for peaceful purposes ?

What is meant by thermonuclear reactions and why are they so called ? Why are these reactions not useful for peaceful purposes ? Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: Describe the principle of an atom bomb. What is meant by critical mass ? What is the criticalmass of `._(92)U^(235)` ?

Describe the principle of an atom bomb. What is meant by critical mass ? What is the criticalmass of . 92 U 235 . ? Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: What is the effect of temperature and pressure on the rate of radioactive disintegration ?

What is the effect of temperature and pressure on the rate of radioactive disintegration ? Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: Why do radioactive element decay?

Why do radioactive element decay? Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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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: The compound that is most difficult protonate is

The compound that is most difficult protonate is A. B. C. D. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance

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Q: The magnitude and permanganate ions are tetrahedral due to

The magnitude and permanganate ions are tetrahedral due to A. The π - bonding involves overlap of d-orbitals ... of mangenese. Select the correct answer from above options...

asked Jan 2, 2022 in Education by JackTerrance