Solublity
Trending Questions
Q. Why alkyl halides though polar are immiscible with water ?
Q. Although haloalkanes are highly polar, they are soluble in water due to intermolecular attraction between haloalkanes and water molecules.
- highly
- slightly
- weak
- strong
Q. Statement-1: The order of nucleophilicity in a polar-protic solvent is:I−<Br−<Cl−<F−
Statement-2: Due to its bigger size, I−, it is less solvated in polar-protic solvents.
Statement-2: Due to its bigger size, I−, it is less solvated in polar-protic solvents.
- Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
- Statement-1 is true, statement-2 is true and statement-2 is NOT correct explanation for statement-1.
- Statement-1 is true, statement-2 is false.
- Statement-1 is false, statement-2 is true.
Q. Which of the following statement is true:
- None of these
- Organic benzene is kinetically less stable than inorganic benzene
- Organic benzene is equally kinetically stable as inorganic benzene
- Organic benzene is kinetically more stable than inorganic benzene
Q. 3. Why is complex [Ma3b3] optically inactive even though it contains no element of symmetry?
Q.
Is Toluene Soluble in water?
Q. A complex is represented as CoCl3.xNH3 . Freezing point of its 0.1 molal solution is -0.558. Kf=1.86. Assuming 100% dissociation and coordination number of Co(lll) is six then what is the complex?
Q. What will be the abnormal molecular mass of K3{Fe(CN)6} if in a aqueous solution it is 40% dissociated? Given molecular wt of this compound is 329
Q. 86 Convert: Chloroethane to Bromoethane
Q. Without exception . Sn2 reaction at chiral carbon give
1 . Enantiomer of substrate
2. Diastereomeric mixture
2. Product of opposite polarity
4. Only 1 stereoisomer
Q.
What is the solubility order of haloalkanes with respect to the halide ?
Q. 59. Why pyridine is aromatic
Q. Assertion: Alkyl halides are polar in nature, but they are almost insoluble in water.
Reason: They can neither form hydrogen bond nor they can break hydrogen bond between water molecules.
Reason: They can neither form hydrogen bond nor they can break hydrogen bond between water molecules.
- Both Assertion and Reason are true and Reason is the correct explanation to Assertion
- Both Assertion and Reason are true and Reason is not the correct explanation to Assertion
- Assertion is true but Reason is false
- Assertion is false but Reason is true
Q.
Solubility of hydrogen in water is
very low
moderate
high
cannot be determined
Q. Even though carbon dioxide is non-polar and water is polar, carbonated water is fairly stable if kept in a closed container. The equilibrium between carbon dioxide, water, and carbonic acid helps stabilize the gas to some extent.
Which other factor can explain the interaction between the polar and non-polar substances?
Which other factor can explain the interaction between the polar and non-polar substances?
- The hydrogen bonding in the water supporting the non-polar substance.
- The dipole-induced dipole effect of water on carbon dioxide.
- The dipole- induced dipole effect of carbon dioxide on water.
- The fact that carbon dioxide acts as a liquid in the presence of a strongly polar solvent lie water.
Q. Select the correct solid whose Solubility decreases with increase in temperature A. Li2SO4 B. Agno3 C. NANO3 D. NH4Cl
Q.
Alkyl halides though polar are immiscible with water as:
To break the hydrogen bonds between the water molecules
The molecules of water are held together by Hydrogen bonds
To overcome the attractions between the haloalkane molecule
Both (A) and (C)
Q.
If conjugated cyclic Polymers like polyacetylene conduct electricity why does benzene not conduct electricity?
Q. Bromination of an alkane as compared to chlorination proceeds _____________.
- at a slower rate
- at a faster rate
- with equal rate
- with equal rate (or) different rate depending upon the temperature
Q. Which is/are incorrect statements ?
- CO is toxic because it forms a complex with haemoglobin in the blood
- diamond is unaffected by conc. acids but graphite reacts with hot conc. HNO3 forming mellitic acid C6(COOH)
- C3O2, carbon suboxide, is a foul-smelling gas
- COCl2 is called phosphine gas
Q. Alkyl halides are immiscible in water though they are polar because
- they react with water to give alcohols
- they cannot form hydrogen bonds with water
- C−X bond cannot be broken easily
- they are stable compounds and are not reactive.
Q. Which of the following statements on fluorine are false?
- Fluorine dissolves in water
- Fluorine reacts with water forming
- Fluorine reacts with water forming
- The Fluorine
molecule is non-polar.
Q. The types of attractive forces between a polar molecule and a non-polar molecule are:
- dispersion forces
- dipole-dipole forces
- hydrogen bonds
- dipole-induced dipole forces
Q. 6. Can 4chloro anilene be called as p-chloroanilene
Q. Statement-1: The order of nucleophilicity in a polar-protic solvent is:I−<Br−<Cl−<F−
Statement-2: Due to its bigger size, I−, it is less solvated in polar-protic solvents.
Statement-2: Due to its bigger size, I−, it is less solvated in polar-protic solvents.
- Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
- Statement-1 is true, statement-2 is true and statement-2 is NOT correct explanation for statement-1.
- Statement-1 is true, statement-2 is false.
- Statement-1 is false, statement-2 is true.
Q.
Nitrogen is inert because :
- of low boiling point
- it supports combustion
- of high electronegativity
- dissociation energy of its molecule is fairly high
Q. A solution of (−)−2-chloro-2-phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of:
- Carbene
- Carbocation
- Free radical
- Carbanion
Q. Pick up the correct statement about alkyl halide.
- They are soluble in organic solvents
- They are soluble in water
- They show H-bonding
- They do not contain any polar bond.
Q. In general alkyl halides are insolube in water. The main reason is:
- they are slightly polar
- they do not form hydrogen bonds with H2O
- the halogen end is repelled by water
- they are unreactive compounds.
Q. The forces of attraction between the elemental gaseous molecules are called Van der Waal's forces of attraction.
- True
- False