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1. A
   Phenol
2. B
   Potassium benzoate
3. C
   Benzoic acid
4. D
   Aniline

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1. A
   Ethanol
2. B
   Ethanal
3. C
   Ethoxyethane
4. D
   Ethanoic acid

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1. A
   Structure (a)
2. B
   $\text{(C}_2\text{H}_5\text{)}_3\text{N}$
3. C
   $\text{(CH}_3\text{)}_3\text{C–NH}_2$
4. D
   Structure (d)

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1. A
   These exhibit properties between 's' and 'p' block elements.
2. B
   These form cations with incomplete d-subshell.
3. C
   5d series consists of all elements from lanthanum to mercury of periodic table.
4. D
   These are arranged in four different 'd' series.

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1. A
   148 g mol$^{-1}$
2. B
   164 g mol$^{-1}$
3. C
   172 g mol$^{-1}$
4. D
   180 g mol$^{-1}$

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1. A
   6.34
2. B
   5.66
3. C
   4.34
4. D
   3.80

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1. A
   CH$_3$–CH$_2$–CH$_2$–X
2. B
   C$_6$H$_5$–CH$_2$–X
3. C
   CH$_2$=CH–CH$_2$X
4. D
   CH$_2$–CH=CH–X

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1. A
   Chloromethane
2. B
   Fluoromethane
3. C
   Iodomethane
4. D
   Bromomethane

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1. A
   Propan-1-amine
2. B
   Prop-2-en-1-amine
3. C
   Prop-1-en-2-amine
4. D
   Propan-2-amine

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1. A
   C-1 of $\beta$-fructose and C-2 of $\alpha$-glucose
2. B
   C-1 of $\alpha$-glucose and C-2 of $\beta$-fructose
3. C
   C-1 of $\alpha$-glucose and C-1 of $\beta$-fructose
4. D
   C-2 of $\alpha$-glucose and C-2 of $\beta$-fructose

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1. A
   $292.00$ g mol$^{-1}$
2. B
   $189.00$ g mol$^{-1}$
3. C
   $140.00$ g mol$^{-1}$
4. D
   $108.00$ g mol$^{-1}$

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1. A
   Cu
2. B
   Zn
3. C
   Mg
4. D
   Po

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1. A
   Group 13
2. B
   Group 15
3. C
   Group 16
4. D
   Group 17

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1. A
   Butyric acid
2. B
   Valeric acid
3. C
   Acetic acid
4. D
   Formic acid

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

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1. A
   $\frac{17}{4}$
2. B
   $\frac{82}{9}$
3. C
   $\frac{97}{36}$
4. D
   $2$

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1. A
   its altitudes are in A.P.
2. B
   its altitudes are in H.P.
3. C
   its medians are in G.P.
4. D
   its medians are in A.P.

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1. A
   $\frac{\pi}{4}+\frac{1}{2}\cos^{-1}x^2$
2. B
   $\frac{\pi}{4}+\cos^{-1}x^2$
3. C
   $\frac{\pi}{4}-\frac{1}{2}\cos^{-1}x^2$
4. D
   $\frac{\pi}{4}-\cos^{-1}x^2$

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

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1. A
   $x + \sqrt{3}y - 14 = 0$
2. B
   $x + \sqrt{3}y + 14 = 0$
3. C
   $x - \sqrt{3}y + 14 = 0$
4. D
   $x - \sqrt{3}y - 14 = 0$

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1. A
   36
2. B
   32
3. C
   38
4. D
   40

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1. A
   $x^2 - 10x + 18 = 0$
2. B
   $2x^2 - 20x + 19 = 0$
3. C
   $x^2 - 10x + 19 = 0$
4. D
   $x^2 - 20x + 18 = 0$

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1. A
   ${}^{11}C_6(0.24)^6$
2. B
   ${}^{11}C_6(0.24)^5$
3. C
   ${}^{11}C_6(0.4)^6(0.6)^5$
4. D
   ${}^{11}C_6(0.4)^5(0.6)^6$

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1. A
   $\frac{x^2}{2} + \frac{9}{4}\cdot\frac{1}{x^4} + \frac{5}{4}$
2. B
   $\frac{x^2}{2} - \frac{5}{4}\cdot\frac{1}{x^4} + \frac{9}{4}$
3. C
   $\frac{x^2}{2} + \frac{5}{4}\cdot\frac{1}{x^4} + \frac{9}{4}$
4. D
   $\frac{x^2}{2} - \frac{9}{4}\cdot\frac{1}{x^4} + \frac{5}{4}$

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1. A
   95
2. B
   260
3. C
   320
4. D
   380

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