I gave improvement exam(CBSE)for class 12 in four subjects and year before that i gave compartment exam for one subject (music), how will i calculate my final percentage?
Hey!
So, whatever your final score was, that is, after the improvement and compartment exam, whatever score you have received will be taken into consideration. If you had total five subjects then, the percentage calculation will be marks obtained or scored divided by total marks multiplied by 100. You can calculate in this manner. This will result in your overall percentage.
Answer laterBy passing electric current , NaclO3 is converted into NaclO4 . How many moles of NaclO4 will be formed when 3 faradays of charge is passed through NaclO3 ?
The balanced chemical equation for above question is-
NaClO3 + H2O -> NaClO4 + H2
The oxidation state of Cl atom in NaClO3 is +5 and the oxidation state of Cl atom in NaClO4 is +7. So, the net change in oxidation state = 7-5 = +2.
This show that 2 faradays of charge is required to get 1 mole of NaClO4.
So if 1 faradays of charge is passed through NaclO3 then (1/2) mole of NaClO4 obtained.
Then 3 faradays of charge is passed through NaclO3 then (1/2)x3 mole of NaClO4 obtained that is 1.5 mole NaClO4 is obtained.
i have given compartment exam in music, and improvement exam in 4 main subject except music, now while getting admission in college they ask me to give total marks in 500, but i have given improvement for 400 marks, which subject marks should i add in 400 to make it 500
Improvement exams can only be given by passed out students. You can use any of your result for applying in colleges i.e. improved result or one that you got earlier. If you have given exam in 4 subject then you have to mention marks of music as 5 subject which you have got in your compartment examination that will sum up to 500 marks.
Hope this will help
Thank you
