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Alkanoates are naturally found in
Determine the half-life of a first order reaction with constant 4.5 x 10\(^{-3}\) sec\(^{-1}\).
Fats and oils are esters of fatty organic acids combined with a trihydric alkanol commonly referred to as
| COMPOUND | S | T | U | V | W |
| FORMULA | ROR' | RCOOH' | RCOR' | ROH' | RCOOR' |
From the table above, which of these two compounds can form functional group isomers?
The difference in molecular mass between an alkene and alkyne with six carbon per mole is
The molecular formular of a hydrocarbon with an empirical formula of CH\(_3\) and a molar mass of 30 is
Sulphur(IV)oxide can be used as a
Water gas obtained from the gasification of coke is made up of
When Sulphur(IV)oxide is passed into solution of acidified tetraoxomanganate(VII), the colour changes from
The highest isotope of hydrogen is
Na\(_2\)X ⇌ 2Na\(^+\) + X\(^{2-}\)
The bond between Na and X is likely to be
The group VIII elements are the inert gases because they
How much of 5g of radioactive element whose half life is 50days remains after 200days?
The principle which states that no two electrons in the same orbitals of an atom have same value for all four quantum numbers is the
What method is suitable for the separation of gases present in air?
CuO\(_s\) + H\(_2\)(\(_g\)) ⇌ Cu\(_s\) + H\(_2\)O(\(_g\))
In the equation above, the effect of increased pressure on the equilibrium position is that
One of the following is not a water pollutant?
The ions responsible for permanent hardness in water are sulphates of
In the graph above, y represents
Which of these is the most preferred separation technique for the isolation of solutes where the purity of the constituent is of utmost importance?