## Test Question Set 1

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Chemistry test

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The oxidation number of chromium in Cr₂O₅

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Write down the common names of the following organic compound

CH₂CH₂CH₂CH=CH₂

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The number of gaseous molecules left in a volume of 1 mm³ if it pumped out to give a vacuum of 10⁻⁶ mm Hg at 298

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The oxidation number of phosphorus in Ba(H₂PO₂)₂

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The oxidation number of Iron in [Fe(H₂O)₅(NO)⁺]SO₄

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Shielding constant of the 4S electron of chromium atom

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Arrange the following alkenes in order of increasing stability

1. Me₂C=CH₂
2. cis-MeCH=CHMe
3. trans-MeCH=CHMe
4. MeCH₂CH=CH₂

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What is the radius of the Argon atom if Tc = - 122°C, Pc = 48 atm?

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Boyle temperature of nitrogen gas if a = 1.4 atm lit² mol⁻² and b = 0.04 lit mol⁻¹

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The number of water molecules in 250 ml of water is closest to
Given the density of water 1.0 gm ml-1, Avogadro number =6.023 × 1023

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The number of molecules presents per ml of an ideal gas maintained the pressure of 7.6 ×10⁻³ mm of Hg at 0°C

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Effective nuclear charge of the hydrogen atom

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The Critical constants for water are 647 K, 22.09 MPa and 0.0566 dm³mol⁻¹, the value of Van der Waals constant b

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1 debye is equal to how many coulomb meters?

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### Acids and bases questions answers

#### Test Question Set 2

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Comment on the possibility of defining a Boyle Temperature if a=b=0

$T_{B}=\frac{a}{R\times&space;b}$

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The Boyle temperature of nitrogen gas given a=1.4 atm lit2 mol-2 and b = 0.04 lit mol-1

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Comment on the possibility of defining a Boyle temperature if a=0

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What are the CGS and SI units of Van der Waals constant b?

$\therefore&space;deviation=\frac{4.92-4.904}{4.904}\times&space;100=0.326$

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Find the extent of deviation from the ideal behavior of 2 moles of nitrogen gas occupying 10 lit volume at 270°C
Given, a = 1.4 atm liter2 mol-2 and b=0.04 lit mol-1.

$unit\,&space;of\,&space;a=\frac{unit\,&space;of\,&space;P\times&space;\left&space;(&space;unit\,&space;of\,&space;V&space;\right&space;)^{2}}{\left&space;(unit\,&space;of\,&space;n&space;\right&space;)^{2}}$

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What is the SI unit of Van der Waals constant a?

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If a = 1.4 atm liter2 mol-2 and b=0.04 lit mol-1, the pressure of 2 moles of nitrogen gas occupying 10 lit volume at 270°C

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### Application of dipole moment

#### Test question Set 3

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Alkenes olefins questions

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IUPAC name of CH3CH2C(CH3)=CH2

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How many geometric isomers possible in butene?

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CH3ㄧ(H3C)C=CH2
Substituted name of the above hydrocarbon

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CH3-CH=CH-CH3
The common name of the above alkene

The structure can be written as

CH3-CH2-CH=CH-CH3

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IUPAC name of the alkene CH3-CH2-CH=C2H4

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