Tag: chemistry

Questions Related to chemistry

The principle behind the working of an atom bomb is:

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. Nuclear fussion

  2. Nuclear fission

  3. Radioactivity

  4. None of these

Show answer
Correct Option: B
Explanation:

Nuclear fission

 The atom bomb , also known as atomic bomb or fission bomb is an explosive device  that derives its destructive force from the fission of heavy elements. Typical fuel for the fission reaction within the bomb is either uranium or plutarium.

The energy released by the Hiroshima bomb was originally thought to be equivalent to the destructive power of approximately 

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. 2000 tons of TNT

  2. 20000 tons of TNT

  3. 200000 tons of TNT

  4. 2000000 tons of TNT

Show answer
Correct Option: B
Explanation:

Blast yard of little bys is equivalent to 15 kilotons(15000 tons)  of TNT. 

 All conventional modern thermonuclear warheads are also called as 

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. fission-fusion-fission

  2. Neutron bombs

  3. Cobalt bombs

  4. three stage bomb

Show answer
Correct Option: A
Explanation:

Fission-fusion-fission 

A typical thermo nuclear warhead may be constructed according to a three stage design featuring a fission, fusion and then again fission. 

 The World Nuclear Association considers used fuel management to be sustainable if it meets the following key criteria:

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. It covers all the steps of used fuel management from the generation of used fuel up to and including final disposal in accordance with a well defined practical plan.

  2. It proves to be feasible with a sustainable impact level.

  3. It protects human health and the environment and has no greater impact on the health of future generations than is allowed today.

  4. It is able to demonstrate to a practicable extent that it is technically and economically viable.

  5. All of the above

Show answer
Correct Option: E
Explanation:

E

The world Nuclear Association considers used fuel management to be sustainable if it meets certain criteria. The criteria includes the covering of all the steps of the used fuel management upto the final disposal with high feasibility. It must protect human health and environment without creating any impact for future generation. 

Compared to the one used on Hiroshima, the Nagasaki bomb was rounder and fatter, so it was called "Fat Man." The fissile material was 

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. plutonium 239

  2. plutonium 237

  3. uranium 235

  4. uranium 239

Show answer
Correct Option: A
Explanation:

Plutonium 239

Fat man was an implosive type nuclear weapon with solid plutonium core. 

Which weapons among the following, though, would produce far less radioactive fallout than current designs, although they would release huge numbers of neutrons?

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. Pure fission weapons

  2. Boosted fission weapons

  3. Pure fusion weapons

  4. None of the above

Show answer
Correct Option: C
Explanation:

C

A pure fusion weapon is a hypothetical hydrogen bomb design that does not need a fission primary explosive to ignite the fusion of deuterium and tritium, two heavy isotopes of hydrogen. Pure fusion weapons offer the possibility of generating very small nuclear yards and the advantage of reduced collateral damage stemming from fallout because these weapons would not create the highly radioactive byproduct associated with fission type weapons. These weapons would be lethal not only because of their explosive force, which could be large compared to bombs based on chemical explosives, but also because of the neutrons they generate. 

Which of the following is true regarding the working process of weapon?

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. Energy is released when those neutrons split off from the nucleus

  2. splitting the nuclei in the same way, releasing more energy and more neutrons.

  3. The splitting of atomic nuclei releases enormous energy

  4. None of the above

Show answer
Correct Option: A,B,C
Explanation:

A, B and C

Energy is released when those neutrons split off from the nucleus splitting nuclei in the same way, releasing more energy and more neutrons. The splitting of atomic nuclei releases enormous energy.

Hydrogen bomb is based on the principle of

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. uncontrolled fusion reaction

  2. controlled fusion reaction

  3. uncontrolled fission reaction

  4. controlled fission reaction

Show answer
Correct Option: A
Explanation:

Uncontrolled fusion reaction 

Uncontrolled fusion reaction is the principle underlying hydrogen bomb. Basically in this process, lighter atoms will fuse or combine to form heavier elements. 

In an atomic explosion, a temperature of about 10 million degrees is developed at the moment of explosion. The wavelengths of light corning from the hot region of the atomic explosion lie in the

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. Ultraviolet region

  2. Visible region

  3. Infrared region

  4. X-ray region

Show answer
Correct Option: C
Explanation:

lnfrared radiation, often abbreviated as IR, the large band of infrared wavelengths extends from the far-red portion of the visible light spectrum (around 700 - 780 nanometers) to about one millimeter in wavelength. This type of radiation is associated with the thermal region where visible light is not necessarily detectable or even present. As high temperature is developed at the moment of atomic explosion the wavelength of the light coming from that region lie in the infrared region.

Atom bomb consists of pieces of $^{92}U _{235}$ and a source of

chemistry energy : forms and sources renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy

  1. Proton

  2. Neutron

  3. Meson

  4. Electron

Show answer
Correct Option: B
Explanation:

An atomic bomb consists of two pieces of $ _{ 92 }{ U }^{ 235 }$ (or $ _{ 94 }{ Pu }^{ 219 }$) (plutonium) each smaller than the critical size and a source of neutrons