Chemistry-
General
Easy
Question
Itsbasicstrengthis101morethan1,1-dimethyIaminonapthalene. Reason for high basic strength is:
- Resonance
- Steric inhibition of Resonance
- Ortho effect
- Hyperconjugation
The correct answer is: Hyperconjugation
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The number of positive integers satisfying the inequality 
is
The number of positive integers satisfying the inequality is
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equals to
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The electric field in a region is given by
The ratio of flux of reported field through the rectangular surface of area 0.2 m2 (parallel to y-z plane) to that of the surface of area 0.3 m2 (parallel to x-z plane) is a: b, where a = ________
The electric field in a region is given by The ratio of flux of reported field through the rectangular surface of area 0.2 m2 (parallel to y-z plane) to that of the surface of area 0.3 m2 (parallel to x-z plane) is a: b, where a = ________
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Dipole moment of above compound will be
Dipole moment of above compound will be
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Write the total number of benzenoid structural isomers of molecular formula C8H8O,which can give Fehling test.
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Order of enolic content
Order of enolic content
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The element(s) of symmetry present in the following molecule is/are:
I) Alternating axisofsymmetry
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The binaphthol (Bnp) is:
The binaphthol (Bnp) is:
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Determinetheabsoluteconfigurationsofthechiralcentresinthefollowingcompound.
Determinetheabsoluteconfigurationsofthechiralcentresinthefollowingcompound.
chemistry-General
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Sum of total number of chiral centres(x) and total number of pairs of enantiomers(y) for following structure is:
Sum of total number of chiral centres(x) and total number of pairs of enantiomers(y) for following structure is:
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The mineral colemanite is fused with sodium carbonate, compound(Z) is obtained along with white ppt. When(Z) reacts with dil.H2SO4 gives a compound (a) which on strong heating gives an oxide(C).(c) on reduction with Mg produced(d) and nonmetal(X). Treatment of chlorineonamixtureof(c) and carbon at high temperature gives a halide(E) which is fuming liquid(b.pt.13°C) along with a gas(F).(E) is a Lew is acid. (E) and (F) will be:
The mineral colemanite is fused with sodium carbonate, compound(Z) is obtained along with white ppt. When(Z) reacts with dil.H2SO4 gives a compound (a) which on strong heating gives an oxide(C).(c) on reduction with Mg produced(d) and nonmetal(X). Treatment of chlorineonamixtureof(c) and carbon at high temperature gives a halide(E) which is fuming liquid(b.pt.13°C) along with a gas(F).(E) is a Lew is acid. (E) and (F) will be:
chemistry-General
chemistry-
The mineral colemanite is fused with sodium carbonate, compound(Z) is obtained along with white ppt. When(Z)reactswithdil.H2SO4 gives a compound(a) which on strong heating gives an oxide(C).(c) on reduction with Mg produced(d) and nonmetal(X).Treatment of chlorine on a mixture of(c) and carbon at high temperature gives a halide(E) which is fuming liquid(b.pt.13°C) along with a gas(F).(E)is a Lew is acid. (Z) may be:
The mineral colemanite is fused with sodium carbonate, compound(Z) is obtained along with white ppt. When(Z)reactswithdil.H2SO4 gives a compound(a) which on strong heating gives an oxide(C).(c) on reduction with Mg produced(d) and nonmetal(X).Treatment of chlorine on a mixture of(c) and carbon at high temperature gives a halide(E) which is fuming liquid(b.pt.13°C) along with a gas(F).(E)is a Lew is acid. (Z) may be:
chemistry-General
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Areactionisspontaneousiffreeenergychange,
,forthereactionisnegative.Thequestionarises,how wecanexplainthespontaneityofreversiblereactions.Letustaketheexampleofdissociationequilibriumof 
ThevariationoffreeenergywiththefractionofN2O4dissociatedunderstandardconditions is shown in the figure below:
Thestandardfreeenergychangefortheconversionof1moleofN2O4into2molesofNO2is:
Areactionisspontaneousiffreeenergychange,,forthereactionisnegative.Thequestionarises,how wecanexplainthespontaneityofreversiblereactions.Letustaketheexampleofdissociationequilibriumof ThevariationoffreeenergywiththefractionofN2O4dissociatedunderstandardconditions is shown in the figure below:
Thestandardfreeenergychangefortheconversionof1moleofN2O4into2molesofNO2is:
chemistry-General
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Consider the process carried out for an ideal gas.
One by one, stoppers S1, S2, S3............ are removed slowly and the gas expands to V2, L with final pressure P2and final temperature T2. Which of the following is/are correct for the above process.
Consider the process carried out for an ideal gas.
One by one, stoppers S1, S2, S3............ are removed slowly and the gas expands to V2, L with final pressure P2and final temperature T2. Which of the following is/are correct for the above process.
chemistry-General
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Theaboveisothermwasobservedforamonoatomicgasatcertaintemperature. Which of the following is correct?
Theaboveisothermwasobservedforamonoatomicgasatcertaintemperature. Which of the following is correct?
chemistry-General
