Build a question paper in 60 seconds.

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

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1. A
   360 K
2. B
   1000 K
3. C
   900 K
4. D
   300 K

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1. A
   420
2. B
   240
3. C
   100
4. D
   24

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1. A
   10 s
2. B
   8 s
3. C
   6 s
4. D
   4 s

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1. A
   $\frac{3\varepsilon_0AV_0^2}{d}$
2. B
   $\frac{\varepsilon_0AV_0^2}{2d}$
3. C
   $\frac{\varepsilon_0AV_0^2}{3d}$
4. D
   $\frac{\varepsilon_0AV_0^2}{d}$

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1. A
   $\frac{144}{63}$
2. B
   $\frac{25}{9}$
3. C
   $\frac{9}{25}$
4. D
   $\frac{63}{144}$

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1. A
   $2\sqrt{2}$ s
2. B
   2 s
3. C
   $\frac{1}{\sqrt{2}}$ s
4. D
   $\frac{1}{2}$ s

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1. A
   0.20 m
2. B
   0.5 m
3. C
   0.05 m
4. D
   0.10 m

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1. A
   $\frac{q^2}{2\varepsilon_0A^2}$
2. B
   $\frac{q^2}{\varepsilon_0A^2}$
3. C
   $\frac{q^2}{2\varepsilon_0A}$
4. D
   $\frac{\varepsilon_0A}{q^2}$

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1. A
   $\frac{R_1}{R_2}$
2. B
   $\frac{R_2}{R_1}$
3. C
   $\frac{R_1^2}{R_2}$
4. D
   $\frac{R_2^2}{R_1}$

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1. A
   1:2
2. B
   1:1
3. C
   1:24
4. D
   2:5

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

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1. A
   The distance between consecutive nodes is equal to the wavelength.
2. B
   In a pipe open at both ends only even harmonics are present.
3. C
   In a pipe closed at one end, all harmonics are present.
4. D
   In case of a stretched string when vibrated, frequency of first overtone is same as second harmonic.

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1. A
   $M_2V_2<M_1V_1$
2. B
   $M_2V_2=M_1V_1$
3. C
   $M_2V_1<M_1V_2$
4. D
   $M_2V_2>M_1V_1$

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

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1. A
   $2.20\times10^{-2}$
2. B
   $1.60\times10^{-4}$
3. C
   $1.44\times10^{-6}$
4. D
   $2.40\times10^{-4}$

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1. A
   $\text{Cl}^-$
2. B
   $\text{ClO}_2^-$
3. C
   $\text{ClO}_3^-$
4. D
   $\text{ClO}^-$

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1. A
   3.0 K
2. B
   1.5 K
3. C
   2.5 K
4. D
   3.5 K

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1. A
   In a chemical synthesis the waste product should be zero or minimum.
2. B
   Good atom economy means very few atoms of reactants are incorporated in the product.
3. C
   Only small amounts of unwanted by products are formed.
4. D
   Use of Lindane is better than DDT.

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1. A
   $\frac{4r}{\sqrt{3}}$
2. B
   $\frac{4r}{\sqrt{3}}\approx400$ pm (for r=173 pm)
3. C
   $\frac{4r}{\sqrt{2}}$
4. D
   2r

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1. A
   gives H$^+$ ions in aqueous solution
2. B
   accepts a proton
3. C
   accepts electron pair
4. D
   donates a proton

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1. A
   450 K
2. B
   600 K
3. C
   750 K
4. D
   900 K

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1. A
   Nylon-2-nylon-6
2. B
   Terylene
3. C
   Nylon 6
4. D
   Nylon 6,6

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1. A
   Primary alkyl compound
2. B
   Secondary alkyl compound
3. C
   Tertiary alkyl compound
4. D
   Vinyl compound

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1. A
   Energy
2. B
   Work
3. C
   Force
4. D
   Luminous intensity

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