Physics, Chemistry and Biology: Post your doubts here!

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Bismillah
NAOH forms at the cathode giving a blue colour as it is an alkaline and CL2 will first give a red colour at anode then it will bleach that red colour as CL2 is a bleaching agent so electrolyte around anode becomes colourless. NAOH forms because everything discharged except Na+ ions and OH- ions. hope it helps wassalamu alaykum
786:cool:
They said after only 5 min and the tube has two sides so the ions (Na and OH) will go a long way to diffuse.the gases produced will have the same effect as u said said I suppose its c)
 
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U mean p6 . it was amaazziinngggg , actually expecting full marks . Well , i had 4 heading in my table : water bath , temperature , time n no. of bubbles .
wait which variant are you i did 61 and it was so easy omg there was a question stating count the number of dots for 2 marks i was like ty for free marks
 
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I ran out of time so I lost 1 mark 100% .my paper was about renin and spider dots just lyk Anas ^.I only doubted the tables coz you can't be completely sure.
 
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