A gas that turns lime water milky is likely to be from
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Past Questions
137 questionsRust on the surface of a metal sheet contains
The element which can combine with oxygen to form an acid anhydride of the form XO\(_2\) is
In contact process, the catalyst used in the conversion of sulphur(IV)oxide to sulphur(VI) oxide is
A factor that does not affect the rate of a chemical reaction is
Concentrated sodium chloride solution is electrolyzed using mercury cathode and graphite anode. The products at the anode and the cathode respectively are
What is formed when metal reacts with acid to liberate gas?
The IUPAC nomenclature of the compound above is
Aqueous solution of sodium hydroxide can be used to test for the presence of : I. Ca\(^{2+}\) , II. Zn\(^{2+}\) , III. Cu\(^{2+}\)
The composition of alloy permalloy is iron and
CH\(_3\)-CH\(_2\)-OH and CH\(_3\)-O-CH\(_3\)
The relationship between the two compounds above, is that they are
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