A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solution and on oxidation produces a monocarboxylic acid B. A can also be obtained by the action of Cl₂ on Ethanol. A is
Carbonyl compounds undergo nucleophilic addition because of
Ethyl alcohol reacts with following to form a compound of fruity smell
Acetaldehyde and acetone differ in their reaction with
Acid catalysed hydration of alkenes except ethene leads to the formation of
Irrespective of the source, pure sample of water always yields 88.89% mass of oxygen and 11.11% mass of hydrogen. This is explained by the law of
Which of the following is not a unit of time?
Which compound can exist in a dipolare (Zwitterion) structure?
An organic compound with the formula of C₆H₁₂O₆ forms a yellow crystalline solid with phenylhydrazine and gives a mixture of sorbitol and mannitol when reduced with sodium. Which among the following could be the compound?
The tripeptide hormone present in most living cells is
How many monochlorobutanes will be obtained on chlorination of n-butane?
Saponification of ethyl benzoate with caustic soda as alkali, gives
Which salt can be produced by the reaction of carbon monoxide and caustic soda (NaOH)?
According to Le-Chatelier's principle, adding heat to a solid and liquid in equilibrium will cause the
Which of the following does not contain a carboxyl group?
A vessel at equilibrium, contains SO₃, SO₂ and O₂. Now some helium gas is added, so that total pressure increases while temperature and volume remain constant. According to Le-Chatelier's principle, the dissociation of SO₃
Consider the following reaction occuring in a automobile engine 2C₈H₈(g) + 25O₂(g) → 16CO₂(g) + 18H₂O(g). The signs of ∆H, ∆S and ∆G for above reaction would be
An endothermic reaction is one in which
The difference between ΔH and ΔE for the combustion of methane at 270C will be (in J mol-1)
CH4(g) + 2O2 → CO2(g) + 2H2O(l)
Δn = 1 - 3 = (-2)
∴ ΔH - ΔE = Δng RT = (-2) (8.314) (300)
Which of the following is an azo dye?
Which of the following complex exhibits the highest paramagnetic behaviour?
(where gly = glycine, en = ethylene diamine and bpy = bipyridyl moities (At Nos. Ti = 22, V = 23, Fe = 26, Co = 27)
Sodium nitroprusside reacts with sulphide ion to give a purple colour due to the formation of :
Alkyl cyanides are
Which of the following compound gives dye test ?
When the same quantity of electricity is passed through the solution of different electrolytes in series, the amounts of product obtained are proportional to their
In which of the following solutions are ions present?
A cell constant is generally found by measuring the conductivity of aqueous solution of
The reagent used for the preparation of higher ethers from halogenated ethers is
If the melting point of the metals are lower than those of impurities, then the crude metals are purified by the process of
The relationship which describes the variation of vapour pressure with temperature is called
Which of the following is not acidic?
The element with the highest first ionization potential is
Phosphine is produced by adding water to
In CsCl structure, each Cs⁺ ion is surrounded by
Consider the following reaction, 5H₂O₂ + ClO₂ + 2OH- → x Cl- + y O₂ + 6H₂O The reaction is balanced if
Following stereo-structure of tartaric acid represents:
Which of the following type of molecules from micelles?
Cuprous ion is colourless while cupric ion is coloured because
The formula of haematite is