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  1. K

    Biology MCQ thread..!!

    oh,and anyone can explain me my question? :D
  2. K

    Biology MCQ thread..!!

    to shooting star the answer is D because - first convert the anticodon into codon A. codon = GUA B. codon = GAA C. codon = ACU D. codon = ACG now you see the question. option A B and C are present in the formation of tRNA molecule of the sickle cell hb, so the answer is D
  3. K

    Biology MCQ thread..!!

    1 division of stage micrometer = 40 divisions of eye piece 0.1 mm = 40 divisions of eyepiece 100 micrometer = 40 divisions of eyepiece 2.5 micrometer = 1 division of eyepiece 10 micrometer = 4 division of eyepiece so the answer is B
  4. K

    Biology MCQ thread..!!

    It should be B. because P-antigen is present in the cell surface membrane of cells. Q-T helper is the cells which detect the presence of foreign substance and secrete cytokines to stimulate B lymphocytes to produce antibodies R-B lymphocyte recognize the pathogen by binding with the antigen of...
  5. K

    Biology MCQ thread..!!

    Hi, a question here : The answer is B, if you get the same answer, pleas explain it to MEEE
  6. K

    chem p12...hmm that was a tough one !!!

    hey in mcq i got B in at least 15 questions.. hows yours?? :oops:
  7. K

    Chemistry MCQ thread...

    heyy do you have any tips and tricks on balancing equations, i really suck at that :cry:
  8. K

    Chemistry MCQ thread...

    3 is C, how can you find 30 cm3 of 02? 19 is D, can you explain why it is D?? thank you so much btw can others help me with oct nov 04 no 10,11,12 and 21??
  9. K

    Chemistry MCQ thread...

    Hi pros here.. please help me 3 The foul smell that skunks spray is due to a number of thiols, one of which is methanethiol, CH3SH, which burns as follows. CH3SH + 3O2 → CO2 + SO2 + 2H2O A sample of 10 cm3 of methanethiol was exploded with 60 cm3 of oxygen. What would be the final volume of...
  10. K

    Chemistry MCQ thread...

    Hi pros here.. please help me :cry: 3 The foul smell that skunks spray is due to a number of thiols, one of which is methanethiol, CH3SH, which burns as follows. CH3SH + 3O2 → CO2 + SO2 + 2H2O A sample of 10 cm3 of methanethiol was exploded with 60 cm3 of oxygen. What would be the final...
  11. K

    Chemistry MCQ thread...

    thanks MHHaider for answering my question.. 27. what is the reason it cannot be dehydrated? primary alcohol cannot be dehyraded?why? 28. why it should replace H? what reaction is this?which chapter of AS? 29. is this logic or must be memorized?? hehehe :D.
  12. K

    Chemistry MCQ thread...

    wah thank you :D for 15, CO2 is 12 + 16 + 16 = 44 right?? how come we can say it as 24?? for 16,haha ok, but how to determine whether a molecule is oxidised or reduced?? yeah from the definiton loss of electron gain of electron but in heree? for 26, so A and C splits into two parts, why is...
  13. K

    Chemistry MCQ thread...

    hey guys, newbie here :DD very n00b at chemistry hope i can get more knowledge here..hahaha its nov 03.. and please include some explanations on the answers given :) 15 One mole of each of the following compounds is strongly heated and any gas produced is collected at room temperature and...
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