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What’s the solution?
We need to rub salt on a corncob but only salt crystals are available.
Important Questions on Matter is Everywhere
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type of semi-conductor material
amount of doping
temperature
Which one of the following is correct?

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The cubic unit cell structure of a compound containing cation and anion is shown below. When compared to the anion, the cation has smaller ionic radius. Choose the correct statement(s).

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Remove all the anions , except the central one.
Replace all the face centered cations , by anions .
Remove all the corner cations .
Replace the central anion , with cation .
The value of in is _____.

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In the following circuit diagram, the current through the battery is

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Match the following
List - I List-II
A) Metallic solid I) Carbon tetrachloride
B) Covalent solid II) Calcium fluoride
C) Molecular solid III) Copper
D) Ionic solid IV) Silicon carbide
V) Glass
The correct answer is

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