Build a question paper in 60 seconds.

1. A
   Sm
2. B
   Hg
3. C
   Zn
4. D
   W

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1. A
   1.22
2. B
   1.32
3. C
   1.42
4. D
   1.83

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1. A
   $500.80^\circ\text{C}$
2. B
   $100.16^\circ\text{C}$
3. C
   $100.8^\circ\text{C}$
4. D
   $20.8^\circ\text{C}$

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1. A
   PHBV
2. B
   Nylon 2-nylon 6
3. C
   Buna-N
4. D
   Thermocol

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1. A
   $0.50\,\text{cm}^{-1}$
2. B
   $0.72\,\text{cm}^{-1}$
3. C
   $1.5\,\text{cm}^{-1}$
4. D
   $2.0\,\text{cm}^{-1}$

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1. A
   $-5.713\,\text{J}$
2. B
   $-11.526\,\text{J}$
3. C
   $-3457.97\,\text{J}$
4. D
   $-21{,}242\,\text{J}$

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1. A
   $\text{C}_2\text{H}_5\text{OH}$
2. B
   $\text{CH}_2=\text{CH}_2$
3. C
   $\text{CH}_4$
4. D
   $\text{C}_2\text{H}_6$

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

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1. A
   $\text{C}_6\text{H}_5\text{CH}_2\text{CHO}$
2. B
   $\text{C}_6\text{H}_5\text{CH}_2\text{COOH}$
3. C
   $\text{C}_6\text{H}_5\text{COOH}$
4. D
   $\text{C}_6\text{H}_5\text{COCH}_3$

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1. A
   8
2. B
   7
3. C
   $<7$
4. D
   $>8$

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1. A
   $+7$
2. B
   $-3$
3. C
   $+3$
4. D
   $-2$

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1. A
   25%, 75%
2. B
   75%, 25%
3. C
   50%, 50%
4. D
   35%, 65%

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1. A
   Sm
2. B
   Pr
3. C
   Lu
4. D
   Dy

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1. A
   Acrylamide
2. B
   Urea and Formaldehyde
3. C
   Bisphenol
4. D
   Methyl methacrylate

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1. A
   $0.0401\,\Omega^{-1}\text{cm}^{-1}$
2. B
   $0.0051\,\Omega^{-1}\text{cm}^{-1}$
3. C
   $0.0025\,\Omega^{-1}\text{cm}^{-1}$
4. D
   $0.0691\,\Omega^{-1}\text{cm}^{-1}$

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1. A
   Diamond
2. B
   Sulphur (solid)
3. C
   Molten NaCl
4. D
   Crystalline NaCl

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1. A
   $2\sqrt{2}+1$
2. B
   $2(\sqrt{2}+1)$
3. C
   $2(\sqrt{2}-1)$
4. D
   $2\sqrt{2}-1$

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1. A
   The work is finished in time and the payment is not made.
2. B
   The payment is made and the work is not finished in time.
3. C
   The work is finished in time and the payment is not made, or the payment is made and the work is finished in time.
4. D
   Either the work is finished in time and the payment is not made, or the payment is made and the work is not finished in time.

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1. A
   $\frac{y\sin x+(1+y)\cos x}{1+2y+\cos x-\sin x}$
2. B
   $\frac{y\cos x+(1+y)\sin x}{1+2y+\cos x-\sin x}$
3. C
   $\frac{y\sin x-(1+y)\cos x}{1+2y+\cos x-\sin x}$
4. D
   $\frac{y\cos x-(1+y)\sin x}{1+2y+\cos x-\sin x}$

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1. A
   only x
2. B
   only y
3. C
   neither x nor y
4. D
   both x and y

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1. A
   $x+y=5$
2. B
   $3x+2y=12$
3. C
   $2x+y=7$
4. D
   $2x+3y=13$

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1. A
   $(2n+1)\frac{\pi}{2},\,n\in\mathbb{Z}$
2. B
   $(2n+1)\frac{\pi}{4},\,n\in\mathbb{Z}$
3. C
   $n\pi+(-1)^n\frac{\pi}{3},\,n\in\mathbb{Z}$
4. D
   $\frac{n\pi}{2}+1,\,n\in\mathbb{Z}$

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1. A
   10 loss
2. B
   5 loss
3. C
   5 gain
4. D
   10 gain

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1. A
   $\frac{\pi}{4}$
2. B
   $\frac{\pi}{2}$
3. C
   $0$
4. D
   $\frac{\pi}{6}$

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1. A
   $x^2+y^2-2ax-2py+b^2+q^2=0$
2. B
   $x^2+y^2-2ax-2py-b^2+q^2=0$
3. C
   $x^2+y^2+2ax+2py+b^2+q^2=0$
4. D
   $x^2+y^2+2ax+2py-b^2-q^2=0$

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