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Easy

Question

Which of the following metal's oxide can be reducedbyFeasreducingagentattemperatureT1?

  1. Pb    
  2. Ca    
  3. Mg    
  4. None ofthese    

The correct answer is: Pb

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Whichofthegivenmetaloxidesis havingminimum thermaldecompositiontemperature?

Whichofthegivenmetaloxidesis havingminimum thermaldecompositiontemperature?

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Whichintheabovecurveiswronglypresented?

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Allmineralsarenottheorebutall oresareminerals.The extraction of a particular metal depends uponseveral factorsandoverallithastobeconvenientand economical.
ThenBis:

Allmineralsarenottheorebutall oresareminerals.The extraction of a particular metal depends uponseveral factorsandoverallithastobeconvenientand economical.
ThenBis:

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Find out F:

Find out F:

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Find out E:

Find out E:

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Find out C:

Find out C:

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 Find out B:

 Find out B:

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Which of the following particles is most unstable?

Which of the following particles is most unstable?

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Extractionofaluminiumcanbeunderstoodby:

Electrolytic reduction of A l subscript 2 end subscript O subscript 3 end subscript
Electrolytic:( A l subscript 2 end subscript O subscript 3 end subscript +Cryolite+C a F subscript 2 end subscript)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
The molten electrolytes contain N a to the power of plus end exponent comma A l to the power of 3 plus end exponent, and C a to the power of 2 plus end exponent only Al gets deposited at cathode because:

Extractionofaluminiumcanbeunderstoodby:

Electrolytic reduction of A l subscript 2 end subscript O subscript 3 end subscript
Electrolytic:( A l subscript 2 end subscript O subscript 3 end subscript +Cryolite+C a F subscript 2 end subscript)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
The molten electrolytes contain N a to the power of plus end exponent comma A l to the power of 3 plus end exponent, and C a to the power of 2 plus end exponent only Al gets deposited at cathode because:

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Extraction of aluminium can be understood by:

Electrolytic reduction of A l subscript 2 end subscript O subscript 3 end subscript
Electrolytic:( A l subscript 2 end subscript O subscript 3 end subscript +Cryolite+C a F subscript 2 end subscript)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
Thfunction of fluorspar(C a F subscript 2 end subscript)is:

Extraction of aluminium can be understood by:

Electrolytic reduction of A l subscript 2 end subscript O subscript 3 end subscript
Electrolytic:( A l subscript 2 end subscript O subscript 3 end subscript +Cryolite+C a F subscript 2 end subscript)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
Thfunction of fluorspar(C a F subscript 2 end subscript)is:

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In the following nuclear reaction blank subscript 13 end subscript A l to the power of 27 end exponent plus blank subscript 2 end subscript H e to the power of 4 end exponent rightwards arrow blank subscript 15 end subscript P to the power of 30 end exponent plus X, X will be

In the following nuclear reaction blank subscript 13 end subscript A l to the power of 27 end exponent plus blank subscript 2 end subscript H e to the power of 4 end exponent rightwards arrow blank subscript 15 end subscript P to the power of 30 end exponent plus X, X will be

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When blank subscript 15 end subscript P to the power of 30 end exponent decays to become blank subscript 14 end subscript S i to the power of 30 end exponent, the particle released is

When blank subscript 15 end subscript P to the power of 30 end exponent decays to become blank subscript 14 end subscript S i to the power of 30 end exponent, the particle released is

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The binding energies of a deutron and an alpha -particle are 1.125, 7.2 MeV/nucleon respectively. The more stable of the two, is

The binding energies of a deutron and an alpha -particle are 1.125, 7.2 MeV/nucleon respectively. The more stable of the two, is

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Observe the following statements regarding isotones
i) blank to the power of 39 end exponent K subscript 19 end subscript and blank to the power of 40 end exponent C a subscript 20 end subscript are isotones
ii) Nuclides having different atomic numbers (z) and mass number (A) but same number of neutrons (n) are called Isotones
iii) blank to the power of 19 end exponent F subscript 9 end subscript text  and  end text blank to the power of 23 end exponent N a subscript 11 end subscript are isotone

Observe the following statements regarding isotones
i) blank to the power of 39 end exponent K subscript 19 end subscript and blank to the power of 40 end exponent C a subscript 20 end subscript are isotones
ii) Nuclides having different atomic numbers (z) and mass number (A) but same number of neutrons (n) are called Isotones
iii) blank to the power of 19 end exponent F subscript 9 end subscript text  and  end text blank to the power of 23 end exponent N a subscript 11 end subscript are isotone

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