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How many moles of CO\(_2\) are produced when ethanol is burnt with 6g of oxygen
For chemical reaction to be spontaneous, ∆G must be
The chemical formula for potassiumhexacyanoferrate(II) is
Strong acids can be distinguished from weak acids by any of the following methods, EXCEPT
The pH of a 0.001 mol dm\(^{-3}\) of H\(_2\)SO\(_4\) is
[Log\(_{10}\)2 = 0.3]
The table above shows the formulae of some ions. In which of these compounds is the formula not correct?
What would be the order of the electrolytic cell in an industry intending the production of silver plated spoons?
The quantity of electricity required to deposit 180g of Ag from a molten silver trioxonitrate(V) is
[Ag = 108]
127g of sodium chloride was dissolved in 1.0dm\(^3\) of distilled water at 25\(^0\)C . Determine the solubility in moldm\(^{-3}\) of sodium chloride at that temperature. [Na = 23, Cl = 35.5]
If the solubility of KNO\(_3\) at 30\(^0\)C is 3.10 mol/dm\(^3\) a solution containing 303g/dm\(^3\) KNO\(_3\) is likely to be
When a few drops of Millon reagents is added to egg-white solution in a test tube, the white precipitate changes to
How many isomers has the organic compound represented by the formula C\(_3\)H\(_8\)O ?
The number of geometrical isomers of butene are
A gas when mixed with oxygen, it produces a very hot and early controllable flame. What is the name of the flame and where is it used?
Biuret test is a chemical test used for detecting the presence of
The empirical formula of an organic liquid hydrocarbon is XY. If the relative molar masses of X and Y are 72 and 6 respectively, it's vapour density is likely to be
An organic compound contains 53.1% Carbon, 6.2% Hydrogen, 12.4% Nitrogen, and 28.3% Oxygen by mass. What is the molecular formula of the compound if its vapour density is 56.5? [ C =12, H = 1, N = 14, O = 16].
A liquid hydrocarbon obtained from fractional distillation of coal tar that is used in the pharmaceutical industry is
During the fractional distillation of crude oil, the fraction that distills at 200 - 250\(^0\) C is
The constituent of petroleum fraction used in surfacing road is