Class 12

14. Solid state question bank (Chemistry)

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Q1.

Which forms a crystal of $NaCl$?

(A)
$NaCl$ molecules
(B)
$Na^{+}$ and $Cl^{-}$ ions
(C)
$Na$ and $Cl$ atoms
(D)
None of the above
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Q2.

$p$-type and $n$-type semiconductors are formed due to

(A)
Covalent bonds
(B)
Metallic bonds
(C)
Ionic bonds
(D)
Co-ordinate bonds
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