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A substance that is used as a ripening agent for fruits is
Equal moles of ethyne and hydrogen iodide react to give
How many hydrogen atoms does a single ring cycloalkane have less than the corresponding open-chain alkane?
In the purification of impure samples of ethyl ethanoate synthesized by esterification, concentrated sodium trioxocarbonate (IV) solution is used to remove
Which of the following are structural isomers?
The decolourization of purple colour of tetraoxomanganate (VII) ion is a test for
The enzymes responsible for converting sucrose into two simple isomeric sugars is
What will happen if an aluminium spoon is used to stir a solution of iron (II) trioxonitrates (V)?
What is the correct IUPAC name for NO\(_{2} ^{-}\)?
When sulphur (IV) oxide is passed into a solution of sodium hydroxide for a long time, it eventually produces a solution of
A concentrated solution containing H\(^+\), Cu\(^{2+}\), OH\(^-\) and Cl\(^-\) was electrolyzed using platinum electrodes.
The ion that will be discharged at the cathode is?
2H\(_2\) + O\(_2\) → 2H\(_2\)O ΔH = - 571kJ
In the equation above, how much heat will be liberated if 12.0g of hydrogen is burnt in excess oxygen?
In which of the following reactions can the oxidation number of the nitrogen be said to have increased?
When iron is exposed to moisture and it rusts, the value of ΔG for the reaction is
Phenolphthalein in acidic solution is
Which of the following ions require the largest quantity of electricity for discharge at an electrode?
Which of the following equimolar solutions will have the highest pH?