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1. A
   $573\text{ }K,Cu,300\text{ }atm$
2. B
   $623\text{ }K,Cu,300\text{ }atm$
3. C
   $573\text{ }K,300\text{ }atm$
4. D
   $623\text{ }K,300\text{ }atm$

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1. A
   I $> Br > Cl > F$
2. B
   $Cl > Br > F >$ I
3. C
   $Cl > F > Br >$ I
4. D
   $F > Cl > Br > I$

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1. A
   ${NF}_{3}$
2. B
   ${PCl}_{5}$
3. C
   ${SF}_{4}$
4. D
   ${ClF}_{3}$

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1. A
   Smoke, fog and $O_{3}$
2. B
   Smoke, fog and ${SO}_{2}$
3. C
   Smoke, fog and ${CH}_{2} = CH - CHO$
4. D
   Smoke, fog and $N_{2}O_{3}$

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

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1. A
   2,4-Dimethyl pentan-3-one
2. B
   3-Methyl cyclohexane carbaldehyde
3. C
   2-Methyl cyclohexanone
4. D
   4-Methyl pent-3-en-2-one

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1. A
   $C_{6}H_{5}COCl + C_{6}H_{5}{NH}_{2} \longrightarrow C_{6}H_{5}{CONHC}_{6}H_{5}$
2. B
   $C_{6}H_{5}{CH}_{2}CN\overset{\phantom{\lbrack H\rbrack}}{\rightarrow}C_{6}H_{5}{CH}_{2}{CH}_{2}{NH}_{2}$
3. C
   $C_{6}H_{5}{NH}_{2}\overset{\phantom{HCl}}{\rightarrow}C_{6}H_{5}\overset{+}{N}H_{3}{Cl}^{-}$
4. D
   $C_{6}H_{5}{CH}_{2}Cl + {NH}_{3} \longrightarrow C_{6}H_{5}{CH}_{2}{NH}_{2}$

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

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1. A
   solid sol
2. B
   gel
3. C
   aerosol
4. D
   foam

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1. A
   (B) only
2. B
   (C) only
3. C
   (D) only
4. D
   (B) and (D) only

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1. A
   ${Na}^{+} > K^{+} > {Rb}^{+} > {Cs}^{+}$
2. B
   ${Cs}^{+} > {Rb}^{+} > K^{+} > {Na}^{+}$
3. C
   $K^{+} > {Na}^{+} > {Cs}^{+} > {Rb}^{+}$
4. D
   ${Rb}^{+} > {Na}^{+} > K^{+} > {Li}^{+}$

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1. A
   5.92
2. B
   5.0
3. C
   zero
4. D
   5.26

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1. A
   Statement-I is true but statement-II is false
2. B
   Both statement-I and statement-II are true
3. C
   Both statement-I and statement-II are false
4. D
   Statement-I is false but statement-II is true

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1. A
   $\Delta G = 0$ and melting or boiling point of the metal oxide
2. B
   $\Delta G > 0$ and decomposition of the metal oxide
3. C
   $\Delta G < 0$ and decomposition of the metal oxide
4. D
   $\Delta G = 0$ and reduction of the metal oxide

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1. A
   $x = 5^{\log y}$
2. B
   $x = y^{\log5}$
3. C
   $x = y^{\frac{1}{\log5}}$
4. D
   $x = 5^{\frac{1}{\log y}}$

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1. A
   12
2. B
   8
3. C
   13
4. D
   10

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1. A
   $( - 1,0)$
2. B
   $( - 2, - 2)$
3. C
   $(0,2)$
4. D
   $(1,4$

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

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1. A
   1.01
2. B
   1.00
3. C
   1.02
4. D
   1.03

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1. A
   $x + 3z = 10$
2. B
   $x + 3z = 0$
3. C
   $3x + z = 6$
4. D
   $3x - z = 0$

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1. A
   $\frac{\pi}{2}$
2. B
   $\frac{\pi}{3}$
3. C
   $\frac{\pi}{4}$
4. D
   $\frac{\pi}{6}$

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1. A
   $q \Rightarrow p$
2. B
   $\sim q \Rightarrow p$
3. C
   $p \Rightarrow \sim q$
4. D
   $p \Rightarrow q$

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1. A
   $\frac{4}{9}$
2. B
   $\frac{17}{36}$
3. C
   $\frac{5}{12}$
4. D
   $\frac{1}{2}$

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

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1. A
   P and Q
2. B
   $P$ and $R$
3. C
   None of these
4. D
   Q and R

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