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  1. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    So what you meant was the wordings...... That's 100% correct since you could show the examiner you know the concepts very well.
  2. Dream.Eater

    Not really. I just want to get an A* with a really good mark. As far as distinctions are...

    Not really. I just want to get an A* with a really good mark. As far as distinctions are concerned, you've got to know your theory perfectly and show the examiner that you have good problem solving skills. Apart from that, I've got no idea what else is necessary other than a very overall mark
  3. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    But are you going to get the same marks as those who write the usual test? I noticed that 4 marks were allocated for the USUAL nitrate ion test. This was in MJ 2011 paper 4 mark scheme. There was nothing mentioned about the brown ring test. So, by mentioning that test won't the examiner find it...
  4. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    Oh this question has already been answered. Didnt see the next page. My bad....
  5. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    Ans is A Since hydrogen has a lower Mr than air, at first it diffuses into the closed air chamber which increases the pressure inside it making the water level fall. But as time passes hydrogen will diffuse out of the porous pot down a concentration gradient. Therefore the level of wall will...
  6. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    Advantages of recycling 1. Metal ores are finite so recycling helps to conserve them. 2. Less energy consuming. 3. More eco-friendly since its less polluting and more energy saving. Disadvantages 1. There is a need to collect the waste metals and separate them. 2. Purification maybe needed at...
  7. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    I too may have attempted the question in the same way you did. After countless failed attempts, i asked my chem teacher who explained the answer and told me everything that i told you in my previous post. I think cambridge gave this as problem-solving and critical thinking question which would...
  8. Dream.Eater

    Computer Studies Notes + Tips + Queries

    Hi In a computer mock exam , there was a logic gate question where the statement was' A is 1 if P is 1 AND EITHER R is NOT 1......' could anyone tell me what AND EITHER means and what sort of gate is used in that situation? Thanks
  9. Dream.Eater

    Hey anyone got Statement Of Entry?

    I got my statement of entry earlier this week, on Tuesday
  10. Dream.Eater

    Biology; Chemistry; Physics: Post your doubts here!

    That question is the toughest question on covalent bonds from all the previous Chem papers. Its done like this. Now, oxygen has a valency of 6, carbon has 4. In the triple covalent bond 6 electrons( two pairs) must be shared. Moreover both oxygen and carbon must have an octave of electrons...
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