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Chemistry: Post your doubts here!
Send me the links to the question papers, I can't read a word here. I'm sorry. :( -
Physics: Post your doubts here!
Delocalised or 'mobile' electrons are called so because they are never stable or in a fixed place. They move about. That being my point here on eliminating the two options, Miss T. :P -
Chemistry: Post your doubts here!
5. C Due to a significant difference between the 5th and 6th IEs, it can be deduced that X is in Group V of the periodic table with charge -3. It will mst probably form a covalent chloride XCl3. 28. B Dissolving occurs due to hydrogen bonding between hydrogens or its isotopes that are... -
A level Biology: Post your doubts here!
24. More glucose is absorbed, that is true corresponding to the surface area. But the hormones detected are in no way related to the volume of the cell, they too are dependant on the area. So B is incorrect. In C, both the colums are correct, greater are = more hormones detected on the surface... -
Physics: Post your doubts here!
Q25) Drawing the waveforms, l=1/4wavelength in X and l=1/2 wavelength in Y. As the speed of sound is constant, the ratios of the frequencies should be reciprocal to the ratio of wavelengths, that would be frequency of X:Y = 1:2. So frequency of Y is double of the frequency of X. Q31) Conduction... -
Physics: Post your doubts here!
2. Q7 Acceleration upwards is always -9.81 and downwards 9.81. As upward motion is positive, + multiplied ny - gives you -9.81. Vice versa with downward motion. - multiplied with +9.81. The magnitude stays the same as long as air resistance is neglected, and the sign depends on which direction... -
Physics: Post your doubts here!
1. Take the 7 wires to be parallel to each other, so 1/R=6(1/10)+1/100. Answer is 1. 63. -
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A level Biology: Post your doubts here!
Every small division that is visible is o.1 mm. -
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Stat v. 62
I wish I knew, it's kind of funny. :P Oh I messed up, I thought it was about toffees drawn from Ahmed's bag. I set the table for 0, 1, 2, 3,4 and 5. Got it right at the last moment, heh. Alhumdulillah! xD -
Stat v. 62
That's what happened to me too! Every step was perfect but the answer is fluctuating a tad. I'm hoping I'd get 2 out of 4 atleast, for finding np and npq AND setting the k/9 probabily. :D -
S1 statistics pole :D :D :D
Easily! You're doing great. But if I'm doing my AS and I get around 60 in P1 and 48 in P62, what are my chances of getting an A? :(