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CBSE->Plus 2 Biology Science Questions

Total Questions 190
what is meant by bt
1)How is the rate of escape of gasses related to their molar masses or molecular masses?
1) what is the coieficcient of restiution . is there any mathematical formula rel to ht a ball can rise? 2)How is the intensities of 2 stars rel?
what is an inorganic benzene? 2) Lanthanoid contraction is due to increase in which factor of atom? 3)What is the use of ferrosilicon in steel industry? 4)What is the product when benzaldehyde condenses with N,N-dimethylaniline in presence of anhy. ZnCl2 ?
I've come across a term 'Ornithine cycle'. What is it?? is it some thing related to ornithology (study of birds). 2) what is term used for the determination of age of trees?? 3) What is abberal chromosomal compliment , apoptosis , porins , globoid , emerson effect ? 4) In tne evolution of animals a heart to pump the blood is found for the fist time in which organism( annelids or arthropoda)?
whats the difference between parthenogenesis ang apomixis? hwz parthenocarpy different frm apomixis?
how to find antilog of -1.754 using log table?
what is monotany?
who is the father of mathematics?
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