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1. A
   Phenol and formaldehyde
2. B
   1,3-butadiene and styrene
3. C
   Ethylene glycol and styrene
4. D
   $\beta$-hydroxy butyric acid and phenol

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1. A
   Internal energy
2. B
   Viscosity
3. C
   Surface tension
4. D
   Specific heat

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1. A
   Four
2. B
   Three
3. C
   Two
4. D
   One

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1. A
   28 hour
2. B
   42 hour
3. C
   56 hour
4. D
   70 hour

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

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1. A
   $\text{H}_2$
2. B
   $\text{N}_2$
3. C
   $\text{O}_2$
4. D
   $\text{Cl}_2$

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1. A
   $7.50 \times 10^{-23}$ cm$^3$
2. B
   $6.75 \times 10^{-23}$ cm$^3$
3. C
   $5.75 \times 10^{-23}$ cm$^3$
4. D
   $8.25 \times 10^{-23}$ cm$^3$

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1. A
   1.5
2. B
   10.0
3. C
   5.0
4. D
   8.5

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1. A
   tert-Butylamine
2. B
   Ethyldimethylamine
3. C
   Diethylamine
4. D
   n-Butylamine

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1. A
   Isobutylene and methanol
2. B
   1-Methoxybutane
3. C
   2-Methoxybutane
4. D
   2-Methoxy-2-methylpropane

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1. A
   $\text{Cl}_2$ gas is liberated at anode.
2. B
   Na is deposited at cathode.
3. C
   The decomposition of NaCl into Na(s) and $\text{Cl}_2$(g) is spontaneous.
4. D
   Electrical energy is used to carry out the reaction.

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1. A
   Sc
2. B
   Cu
3. C
   Ti
4. D
   Zn

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1. A
   –CHO
2. B
   –OH
3. C
   –NH$_2$
4. D
   –C≡C–

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1. A
   $2.78 \times 10^{-8}$ cm
2. B
   $3.21 \times 10^{-8}$ cm
3. C
   $3.93 \times 10^{-8}$ cm
4. D
   $6.95 \times 10^{-8}$ cm

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1. A
   UV-visible spectroscopy
2. B
   X-ray diffraction
3. C
   Scanning electron microscopy
4. D
   Transmission electron microscopy

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1. A
   6.0
2. B
   4.83
3. C
   10.42
4. D
   7.81

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1. A
   $-225$ J
2. B
   $-985$ J
3. C
   $+225$ J
4. D
   $+985$ J

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1. A
   Cellulose is constituent of cell wall in animal cells.
2. B
   Starch is common constituent of food grains.
3. C
   Lactose is constituent of milk.
4. D
   Animals store polysaccharides in their body in the form of glycogen.

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1. A
   $0.025\,\Omega^{-1}\text{cm}^{-1}$
2. B
   $0.035\,\Omega^{-1}\text{cm}^{-1}$
3. C
   $0.011\,\Omega^{-1}\text{cm}^{-1}$
4. D
   $0.029\,\Omega^{-1}\text{cm}^{-1}$

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1. A
   Zero
2. B
   One
3. C
   Two
4. D
   Three

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1. A
   Propane
2. B
   Butane
3. C
   Pentane
4. D
   Hexane

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1. A
   +5 and $-5$
2. B
   5 and +5
3. C
   $-5$ and +5
4. D
   3 and +3

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1. A
   0.3 mol kg$^{-1}$
2. B
   0.4 mol kg$^{-1}$
3. C
   0.5 mol kg$^{-1}$
4. D
   0.6 mol kg$^{-1}$

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1. A
   NH$_4$CN
2. B
   NH$_4$Cl
3. C
   NH$_4$NO$_3$
4. D
   NaNO$_3$

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1. A
   Alcohols
2. B
   Aldehydes
3. C
   Carboxylic acids
4. D
   Esters

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