When copper (ii) sulphate solution is treated with excess ammonium hydroxide, a precipitate is first…
When copper (ii) sulphate solution is treated with excess ammonium hydroxide, a precipitate is first formed, and then…
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Which of the following represents a precipitation reaction?
Which of the following represents a precipitation reaction? A. H2SO4 + NaCl (to) NaHSO4 + HCl B. Fe…
The following arrangement of elements in order of decreasing number of outer electrons; One of…
The following arrangement of elements in order of decreasing number of outer electrons; One of the elements is…
In the experiment above, a current was passed for 10 minutes and 0.63g of copper…
In the experiment above, a current was passed for 10 minutes and 0.63g of copper was found to…
1.00g of mixture of calcium carbonate and calcium oxide liberated 0.33g of carbon dioxide on…
1.00g of mixture of calcium carbonate and calcium oxide liberated 0.33g of carbon dioxide on strong heating. The…
In what respect will two dry samples of nitrogen gas differ from each other if…
In what respect will two dry samples of nitrogen gas differ from each other if sample 1 is…
Copper sulphate solution is electolysed using platinum electrodes A. current of 0.193 amperes is passed…
Copper sulphate solution is electolysed using platinum electrodes A. current of 0.193 amperes is passed for 2hrs. How…
In the above experiment, the litmus paper will initially
In the above experiment, the litmus paper will initially A. be bleached B. turn green C. turn red…
A certain volume of gas at 298k is heated such that its volume and pressure…
A certain volume of gas at 298k is heated such that its volume and pressure are now four…
Hydrogen is not liberated when trioxonitrate(v)acid reacts with zinc because
Hydrogen is not liberated when trioxonitrate(v)acid reacts with zinc because A. zinx is not rendered passive by acid…