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1. A
   14
2. B
   7
3. C
   4
4. D
   3

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1. A
   $1.1\times10^{-2}$ mol dm$^{-3}$ s$^{-1}$
2. B
   $3.3\times10^{-2}$ mol dm$^{-3}$ s$^{-1}$
3. C
   $4.4\times10^{-2}$ mol dm$^{-3}$ s$^{-1}$
4. D
   $6.6\times10^{-2}$ mol dm$^{-3}$ s$^{-1}$

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1. A
   0.12 g
2. B
   0.24 g
3. C
   1.2 g
4. D
   0.4 g

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1. A
   0.1 m AlCl$_3$
2. B
   0.01 m MgCl$_2$
3. C
   1 m KCl
4. D
   0.5 m NaCl

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1. A
   Blue
2. B
   Green
3. C
   Magenta
4. D
   Black

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1. A
   CH$_4$
2. B
   C$_2$H$_2$
3. C
   H$_2$O
4. D
   NH$_3$

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1. A
   O$^{2-}$
2. B
   Na
3. C
   Mg$^{2+}$
4. D
   Al$^{3+}$

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1. A
   By burning sulphur in air
2. B
   By treating sodium sulphite with dil. sulphuric acid
3. C
   By treating sodium sulphite with dil. hydrochloric acid
4. D
   By roasting zinc sulphide and iron pyrites

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1. A
   Tetraamminediaquacobalt(III) chloride
2. B
   Hexaamminecobalt(III) bromide
3. C
   Potassium tetrahydroxozincate(II)
4. D
   Tetracarbonylnickel(O)

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

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1. A
   5.0 day
2. B
   16.5 day
3. C
   28.0 day
4. D
   9.0 day

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1. A
   Bisphenol and acrylamide
2. B
   Acrylamide
3. C
   Butadiene
4. D
   Styrene

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1. A
   Ethanol
2. B
   t-Butylalcohol
3. C
   Phenol
4. D
   P-nitrophenol

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1. A
   Ethylethanoate
2. B
   Acetophenone
3. C
   N-methylphthalimide
4. D
   Methylsalicylate

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1. A
   liquid in solid
2. B
   solid in liquid
3. C
   liquid in liquid
4. D
   gas in liquid

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1. A
   17
2. B
   10
3. C
   7
4. D
   3

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1. A
   15 cm/sec
2. B
   4 cm/sec
3. C
   2 cm/sec
4. D
   $\frac{2}{5}$ cm/sec

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1. A
   x=1
2. B
   x=0
3. C
   x=-1
4. D
   x=$\pi$

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1. A
   $\frac{30}{91}$
2. B
   $\frac{30}{97}$
3. C
   $\frac{15}{47}$
4. D
   $\frac{15}{97}$

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1. A
   obtuse angled
2. B
   right angled
3. C
   acute angled
4. D
   isosceles

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1. A
   $\frac{5}{8}$ m/sec
2. B
   $\frac{8}{15}$ m/sec
3. C
   $-\frac{8}{15}$ m/sec
4. D
   $\frac{15}{8}$ m/sec

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

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1. A
   $\left(\frac{11}{3},0,\frac{21}{3}\right)$
2. B
   $\left(\frac{17}{3},0,\frac{23}{3}\right)$
3. C
   $\left(-\frac{11}{3},0,\frac{21}{3}\right)$
4. D
   $\left(\frac{17}{3},0,-\frac{23}{3}\right)$

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1. A
   $\frac{5}{11}$
2. B
   $\frac{11}{5}$
3. C
   $-\frac{11}{5}$
4. D
   $-\frac{11}{5}$

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1. A
   $-\frac{(x^4+1)^{1/4}}{x}+c$
2. B
   $\frac{(x^4-1)^{1/4}}{x}+c$
3. C
   $-\frac{(x^4-1)^{1/4}}{x}+c$
4. D
   $-\frac{(x^4+1)^{1/4}}{x}+c$

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