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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Compound which undergo sublimation is
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KMnO4
CaCO3
NH4Cl
Na2CO3
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Question # 2
The volume of a gas at 0 oC is 273 dm3, the pressure remaining constant. At which temperature its volume will be doubled.
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273 K
273
o
C
546
o
C
316 K
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Question # 3
Which one of the following has the greater ionic characters in it.
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HF
HCl
H2O
H2
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Question # 4
Which one of the following substances is used as water absorber in combustion analysis.
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Mg(CIO4)2
50% KOH
Lime water
Dilute solution of NaOH
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Question # 5
In H2SO4the oxidation number of 'S' is
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+2
+6
+8
+4
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Question # 6
When solid KI dissolved in water, its heat of solution is positive. What would happen to dissolution when temperature is increased.
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Increases
Decreases
Remain same
Firs increases than decreases
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Question # 7
An aqueous solution of ethanol is water has vaporu pressure.
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Equal to the of water
Equal to that of ethanol
More than that of H2O
Less than that of water
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Question # 8
The paramagnetic behaviour of oxygen is well explaned on the basis of.
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M.O Theory
N.B Theory
VSEPR Theory
CF theory
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Question # 9
Large value of distribution coefficient K means.
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Component of solute dissolved large in mobile phase
Components of solute do not dissolve in mobile phase
Components of solute remains at original spot
All statements are correct
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Question # 10
NaCI is face centered cubic structure. The Na ion at the face of the unit cell is shared by
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2-unit cells
4-unit cells
Only one unit cell
8-unit cells
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Question # 11
Which is pseudo solid
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CaF2
Glass
NaCl
CaCl2
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Question # 12
London dispersion force are the only forces present among the.
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Molecules of water in liquid state
Atoms of helium in gaseous state at high temperature
Molecule of solid iodine
Molecules of hydrogen chloride gas
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Question # 13
The velocity of photon is
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Independent of its wavelength
Depends on its wavelength
Equal to square of its amplitude
Depends on its source
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Question # 14
Stronger the oxidizing agent greater is the
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Oxidation potential
Reduction potential
Redox potential
E.M.F of cell
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Question # 15
The crystallization of a solid substance is done from a hot saturated solution. The solution is
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Evaporated rapidly
Cooled very slowly to get good crystals
Cooled rapidly to get excellent crystals
Mixed with another miscible solvent
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Question # 16
The number of bonds in oxygen molecules.
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One sigma and One pi
One sigma and two Pi
Three sigma only
Two sig and two pi
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Question # 17
One dm3 of a buffer solution containing 0.01 M NH4Cl and 0.1 M NH4OH having pKa of 3 has pH.
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4
6
9
10
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Question # 18
The oxidation of O -atom in OF3 is.
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-2
+2
-1
+1
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