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Chemistry-

General

Easy

Question

Whichofthegivenmetaloxidesis havingminimum thermaldecompositiontemperature?

CaO
FeO
PbO
MgO

The correct answer is: PbO

Related Questions to study

Whichintheabovecurveiswronglypresented?

Whichintheabovecurveiswronglypresented?

chemistry-General

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:

chemistry-General

Find out F:

Find out F:

chemistry-General

parallel

Find out E:

Find out E:

chemistry-General

Find out C:

Find out C:

chemistry-General

Find out B:

Find out B:

chemistry-General

parallel

Find out A:

Find out A:

chemistry-General

Which of the following particles is most unstable?

Which of the following particles is most unstable?

physics-General

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:

chemistry-General

parallel

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
The function 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
The function of fluorspar( $C a F subscript 2 end subscript$ )is:

chemistry-General

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

physics-General

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

physics-General

parallel

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

physics-General

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

physics-General

A current carrying loop is placed in the nonuniform magnetic field whose variation in space is shown in figure. Direction of magnetic field is into the plane of paper. the magnetic force experienced by the loop is

A current carrying loop is placed in the nonuniform magnetic field whose variation in space is shown in figure. Direction of magnetic field is into the plane of paper. the magnetic force experienced by the loop is

physics-General

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