Good day sir.in number 24 for electrolysis.i think the answer is A.Because for the issue of preferential discharge there are some factors which affect atoms being discharged which are 1.)Nature of electrode 2.)Position of the atoms in the electrochemical series 3.)Concentration of the ions Ibetween OH ions and CL ions it is Cl that will be preferentially discharged at the Anode because it is of higher concentration than OH ions .because in the electronegative series Cl Is closer OH ions because of this it will ne preferentially discharged as it is more concentrated instead of OH ions
The question said aqueous sodium chloride not concentrated sodium chloride, so how is the concentration of chlorine more than that of hydroxide in aqueous solution of sodium chloride?
Sir pls in question 39, lets say you are given a compound like C2H4 and you are told to find the percentage composition of Hydrogen . Will the formula be (H*4)/(C*2+H*4)
In an alkene with six carbon atoms, there are 5 sigma (σ) bonds (single bonds) between the carbon atoms. Additionally, there are 4 pi (π) bonds associated with the double bonds between the carbon atoms.
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I think question 24 is wrong. I believe the anode part is wrong Here is why Doesn't the rules for doesn't the rule for electrolysis of aqueous solutions say that, for the anode, if their is a halide present, it will be discharged. Since chlorine is a halide, it should be favored over oxygen. Sodium Hydroxide would then be formed. I believe A is the correct answer
Electrolysis of an aqueous solution involves applying a voltage to a dissolved ionic compound. The positive electrode is called the anode and is facilitates oxidation. At the positive electrode the anion will be discharged only if it is monoatomic and of high concentration. (Otherwise, oxygen gas is produced).
Sir, sorry but question 37. Distillation - used to separate mixtures with components of large difference in boiling point while, Fractional Distillation - mixtures with small difference in boiling point
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Good day sir.in number 24 for electrolysis.i think the answer is A.Because for the issue of preferential discharge there are some factors which affect atoms being discharged which are
1.)Nature of electrode
2.)Position of the atoms in the electrochemical series
3.)Concentration of the ions
Ibetween OH ions and CL ions it is Cl that will be preferentially discharged at the Anode because it is of higher concentration than OH ions .because in the electronegative series Cl Is closer OH ions because of this it will ne preferentially discharged as it is more concentrated instead of OH ions
The question said aqueous sodium chloride not concentrated sodium chloride, so how is the concentration of chlorine more than that of hydroxide in aqueous solution of sodium chloride?
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The example you gave for filtration in no.36 is for decantation. And filtration is done by the use of filter paper e.g chalk dust suspended in water
You're right, both of the examples are close, you can filter off water to get sand.
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Sir pls in question 39, lets say you are given a compound like C2H4 and you are told to find the percentage composition of Hydrogen . Will the formula be (H*4)/(C*2+H*4)
Yes (H*4)/(C*2+H*4) = 100
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Please sir for no24. Where did the hydrogen and OH come from?
Is from water, the word aqueous means water as solvent.
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how do you solve question 30 pls teach me
In an alkene with six carbon atoms, there are 5 sigma (σ) bonds (single bonds) between the carbon atoms. Additionally, there are 4 pi (π) bonds associated with the double bonds between the carbon atoms.
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I didn't understand question 30
How does alkene have 4 pi bonds
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I think question 24 is wrong. I believe the anode part is wrong Here is why
Doesn't the rules for doesn't the rule for electrolysis of aqueous solutions say that, for the anode, if their is a halide present, it will be discharged.
Since chlorine is a halide, it should be favored over oxygen. Sodium Hydroxide would then be formed. I believe A is the correct answer
Electrolysis of an aqueous solution involves applying a voltage to a dissolved ionic compound. The positive electrode is called the anode and is facilitates oxidation. At the positive electrode the anion will be discharged only if it is monoatomic and of high concentration. (Otherwise, oxygen gas is produced).
please i do not understand number 30
Sir, sorry but question 37.
Distillation - used to separate mixtures with components of large difference in boiling point while,
Fractional Distillation - mixtures with small difference in boiling point
Make more research on distillation and fractional distillation.
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