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1. A
   Enantiomers have identical refractive index.
2. B
   Enantiomers have same chemical properties.
3. C
   Enantiomers are superimposable mirror images of each other.
4. D
   Enantiomers have equal but opposite optical rotation.

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1. A
   LDPE
2. B
   PP
3. C
   PS
4. D
   PET

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1. A
   Polyacrylamide
2. B
   Buna-N
3. C
   Polycarbonate
4. D
   Perspex

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1. A
   Propane
2. B
   Ethene
3. C
   Methane
4. D
   Butane

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1. A
   $\text{MnO}_4^- \rightarrow \text{Mn}^{2+}$
2. B
   $\text{CrO}_4^{2-} \rightarrow \text{Cr}^{3+}$
3. C
   $\text{NO}_3^- \rightarrow \text{NH}_4^+$
4. D
   $\text{Cr}_2\text{O}_7^{2-} \rightarrow 2\text{Cr}^{3+}$

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1. A
   0
2. B
   1
3. C
   1.5
4. D
   2

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1. A
   D < B < A < C
2. B
   B < D < C < A
3. C
   A < D < C < B
4. D
   C < D < B < A

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1. A
   n-Butyl alcohol
2. B
   Isobutyl alcohol
3. C
   Sec-Butyl alcohol
4. D
   tert-Butyl alcohol

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1. A
   Fe
2. B
   Cr
3. C
   Mn
4. D
   Ni

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1. A
   $\text{Fe(CN)}_6^{4-}$
2. B
   $\text{Cl}^-$
3. C
   $\text{SO}_4^{2-}$
4. D
   $\text{PO}_4^{3-}$

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1. A
   +2
2. B
   -6
3. C
   -4
4. D
   +3

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1. A
   $\text{CH}_3\text{CH}_2\text{NH}_2$
2. B
   $\text{CH}_3\text{CH}_2\text{CH}_2\text{NHCH}_3$
3. C
   $(\text{CH}_3\text{CH}_2)_3\text{N}$
4. D
   $(\text{CH}_3)_3\text{CNH}_2$

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1. A
   0.011 mol dm$^{-3}$ s$^{-1}$
2. B
   0.022 mol dm$^{-3}$ s$^{-1}$
3. C
   0.033 mol dm$^{-3}$ s$^{-1}$
4. D
   0.044 mol dm$^{-3}$ s$^{-1}$

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1. A
   12
2. B
   2
3. C
   4
4. D
   6

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1. A
   Mg
2. B
   Ca
3. C
   Be
4. D
   Sr

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1. A
   (a)
2. B
   (b)
3. C
   (c)
4. D
   (d

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1. A
   +5
2. B
   +6
3. C
   +7
4. D
   +8

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1. A
   $5.72 \times 10^{-5}$
2. B
   $6.40 \times 10^{-5}$
3. C
   $7.00 \times 10^{-5}$
4. D
   $7.81 \times 10^{-5}$

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1. A
   Na$_3$AlF$_6$
2. B
   NaAlF$_6$
3. C
   Na$_2$AlF$_6^{2+}$
4. D
   Al(NaF)$_6^{2+}$

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1. A
   Physical states of reactants and products.
2. B
   Total number of steps in which reaction occurs.
3. C
   Temperature of the reaction.
4. D
   Whether the reaction is carried out at constant pressure or constant volume.

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1. A
   Dipole-induced dipole
2. B
   Dipole-dipole
3. C
   Dispersion forces
4. D
   Intramolecular hydrogen bonding

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1. A
   $7.4 \times 10^{-23}$ cm$^3$
2. B
   $9.9 \times 10^{-23}$ cm$^3$
3. C
   $2.7 \times 10^{-23}$ cm$^3$
4. D
   $6.4 \times 10^{-23}$ cm$^3$

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1. A
   Phenol
2. B
   Benzaldehyde
3. C
   Benzophenone
4. D
   Benzoic acid

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1. A
   Ethyl methyl carbinol
2. B
   Isobutyl carbinol
3. C
   Isopropyl carbinol
4. D
   Diethyl carbinol

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1. A
   He
2. B
   Ar
3. C
   Cl
4. D
   I

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