A specie with maximum number of unpaired electrons.
1.F
2.H2O
3.HF
4.NH-2
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An atom loses or gains electrons to
1.Gain stability
2.Form a bond
3.Complete its outermost shell
4.all are accurate justifications
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Critical temperature for different gases is different and depends upon
1.Size of molecule
2.Shape of molecule
3.Intermolecular attractions
4.All of the above
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Energy of atom in compound is
1.Higher than individual
2.Lesser than individual
3.No change
4.Impossible to predict
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Energy required to remove electron from an atom
1.Ionization potential
2.Electronegativity
3.Electron affinity
4.Activation energy
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For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature?
1.1/2dm3
2.1/3dm3
3.1/4dm3
4.2/3dm3
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Force responsible to hold atoms together in a compound is called
1.Bond
2.Attractive force
3.Interaction
4.All of above represent same entity
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Hydrogen effuses four times more rapidly than volume of an unknown gas molar mass of unknown gas should be
1.16 gmol-1
2.32 gmol-1
3.48 gmol-1
4.64 gmol-1
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If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear
1.Straight line parallel to x-axis
2.Straight line parallel to y-axis
3.Straight line
4.Curve
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In a group ionic radii
1.Increases
2.Decreases
3.No change
4.Variable trend
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In a period the atomic radii
1.Increases
2.Decreases
3.Remain same
4.First decreases then increases
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In how many forms do matter exists?
1.Three
2.Four
3.Five
4.Two
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In O2 each oxygen atom is hybridized
1.sp3
2.sp2
3.sp
4.All
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Ionization energy in a period generally
1.Increases
2.Decreases
3.No change
4.Variable trend
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Linds method is employed for
1.Separation of gases
2.Expansion of gases
3.Compression of gases
4.Liquefaction of gases
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Measurement of the degree of polarity is
1.Electron affinity
2.Ionic character
3.Ionization energy
4.Dipole moment
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Molecular orbitals are filled according to
1.Auf bau principle
2.Hunds rule
3.Paulis Exclusion principle
4.All these
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One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of
1.22.414 m3
2.44.828 dm3
3.22.414 dm3
4.11.212 cm3
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Shielding effect across the period
1.Increases
2.Decreases
3.Constant
4.None
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The diffusion of gases at absolute zero will be
1.Unchanged
2.Slightly decreased
3.Slightly increased
4.Zero
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The gases become non-ideal at
1.High temperature and high pressure
2.Low temperature and low pressure
3.High temperature and low pressure
4.Low temperature and high pressure
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The highest temperature at which a substance can exist as a liquid is called its
1.Critical temperature
2.Standard temperature
3.Absolute temperature
4.Upper consulate temperature
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The ionization energy
1.Generally increases from left to right in a period
2.Does not change in a period
3.Increase from top to bottom in a group
4.Does not change in a group
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The kinetic molecular theory of gases was put forward in 1738 by
1.Boltzman
2.Maxell
3.Clausius
4.Bernoulli
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The molecule having ?-bond
1.H2O
2.C2H6
3.O2
4.NH3
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The non-ideal behaviour results chiefly from
1.Intermolecular attraction and infinite volume
2.Elastic collisions and finite volume
3.Intermolecular attractions and finite volume
4.Intermolecular attraction only
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The octet rule does not always hold for which of the following elements
1.C
2.O
3.F
4.P
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The partial pressure exerted by the water vapours is called
1.Surface tension
2.Aqueous tension
3.Vapour pressure
4.Hydraulic pressure
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The processes of effusion and diffusion are best understand by
1.Daltons law
2.Avogadros law
3.Grahams law
4.Charles law
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The relative attraction of the nucleus for the electrons in a chemical bond is called
1.Ionization energy
2.Electron affinity
3.Electro negativity
4.None of the above
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The solid particles only posses
1.Translational motion
2.Vibrational motion
3.Rotational motion
4.All of above motions
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The spreading of fragrance or scent in air is due to
1.Diffusion
2.Effusion
3.Attraction with air
4.Low dsensity
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What do we call to sudden expansion of plasma?
1.Avogadros law
2.Grahams law of diffusion
3.Joule Thompson effect
4.Daltons law of partial pressure
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What is the abundant form of matter on earth?
1.Gas
2.Liquid
3.Solid
4.Plasma
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What is the simplest form of matter?
1.Gas
2.Liquid
3.Solid
4.Semi solid
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What will be the pressure of 1 mole of an ideal gas maintained at 300 K and 250cm3 volume?
1.98.5 atm
2.96.7 atm
3.95.8 atm
4.97.1 atm
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When 2 lone pair and 2 bond pair are around the central atom reduction in the bond angle is up to.
1.109.5?
2.104.5?
3.107.5?
4.102?
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Which of the following have their outer most shell complete in atomic form?
1.Noble gases
2.Alkali metals
3.Coinage metals
4.Gun metals
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Which of the following is the best explanation that CO2 is non polar molecule
1.Linear geometry
2.Dipole moment is zero
3.Sp hybridization
4.None
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Which of the following option is incorrect about gases?
1.All molecules move with same speed
2.All molecules behave independently
3.PV / RT = n
4.All gases cannot be liquefied through Linds Method
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Which of the following will have highest value of electron affinity
1.F
2.Cl
3.Br
4.I
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Which of the solid does not contain covalent bond
1.Copper
2.Ice
3.Diamond
4.Graphite
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Which one has maximum number of unpaired electrons?
1.6X
2.7Y
3.9Z
4.13W
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Which one is not the absolute term of the element?
1.Ionization energy
2.Electron affinity
3.Electro negativity
4.Atomic size
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Which one is not the partial pressure of oxygen in the lungs?
1.0.1526 atm
2.116 mm of Hg
3.116 torr
4.1 atm
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Which one is the right value for R?
1.0.0821 atm dm3k-1mol-
2.0.0821 atm m3k-1mol-1
3.2 cal k-1 mol-1
4.8.314 Nm2k-1mol-1
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Which one shows high %age of the ionic character?
1.H2O
2.HF
3.HCI
4.HBr
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Which state of matter has the lowest density?
1.Gas
2.Liquid
3.Solid
4.Plasma
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Which type of bond is formed by overlap of p orbitals
1.Pi (?)
2.Sigma(?)
3.Both
4.Neither
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Who made volume and pressure correction to explain deviation of gases from ideal behaviour?
1.Clausius
2.Boltzman
3.Charles
4.Vander waal
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