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Recent questions in Isolation of Elements
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CBSE XII
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Chemistry
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Isolation of Elements
Which one of the following ore is not concentrated by froth floation process ?
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
The process of converting hydroated alumina into anhydrous alumina is called
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
Cupellation is a process used for the refining of
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
Which method of purification is represented by the following equator ? $T_{i(s)} +2I_{2(g)} \quad \underrightarrow{523 \;K} \quad TiI_{4(g)} \quad \underrightarrow{1700\;K} \quad T_{i(s)} +2I_2(g)$
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
The electrolytic reduction technique is used in the extraction of
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
Zone refining is a method to obtain
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
Poling process is used
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
The impurities present in the mineral are called
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
2
answers
In thermite process the reducing agent is :
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
1
answer
Sulphide ores are generally concentrated by
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 22, 2015
by
meena.p
2
answers
Which one of the following is not a basic flux ?
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 21, 2015
by
meena.p
1
answer
Argentine is a mineral of
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 21, 2015
by
meena.p
1
answer
The metal oxide, which cannot be reduced to metal by carbon is
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 21, 2015
by
meena.p
1
answer
Froth floatation process for the concentration of ores is a practical application of
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 21, 2015
by
meena.p
1
answer
Calamine is an are of
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 21, 2015
by
meena.p
1
answer
The actual reducing agent of hematite in blast furnace is
cbse
class12
chemistry
ch-6
isolation-of-elements
asked
Dec 21, 2015
by
meena.p
1
answer
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