Bio Flashcards
What is formed by the end of first month of pregnancy?
Heart of embryo
What occurs by the end of second month of pregnancy?
Limbs and digits formed
What occurs by the end of first trimester (12weeks) ?
Limbs and genitalia well developed (major organ systems )
What occurs during 5th month ?
- Movement of foetus
2. hair on head.
What happens by the end of 2nd trimester ? 24 weeks
Eyelids separate
Eyelashes formed
Fine hair on body.
Hormones seen only in pregnant female are?
hCG
hPL
Hormone released by ovary during later phase of pregnancy is?
Relaxin
Hormones released by placenta ?
HCP
HPL
Estrogen
Progestogens
Increased levels of which hormones are observed during pregnancy?
Estrogen
Progestogen
Cortisol
Thyroxine
What increases down the group in case of 15 and 16th group hydrides ??
Enthalpy of formation and E-H distance
Dissociation constant order down the group in 16th group hydrides ?
Increases down the group.
Strength of ligands
CO > CN-> en > NH3
Edta4->NCS- > Water > Oxalate > OH-
CO > CN-> en>NH3>EDTA4->WATER>OXALATE> OH- >F->S2->
Cl-
CO > CN-> en>NH3>EDTA4->WATER>OXALATE> OH- >F->S2->
Cl->SCN-> Br->I-
Bond angle between O3 and its bond length ??
117° and 128 pm
In which state does HNO3 show planar structure ?
Gaseous state !!! Other states aren’t mentioned in NCERT.
CO is acidic basic or neutral ??
Neuuuuutrall
CO2 ,SiO2, GeO2, SnO2 ,PbO2 ..which are acidic and which are amphoteric ??
CO2 sio2 and geo2 are acidic !!!!
SnO2 and pbo2 are amphotericccc
Cu2S + Cu2O is called ??
Copper matte
Copper matter on auto reduction gives ??
Blistered Copper which is Cu
Blistered copper is due to the evolution of which gas ???
SO2 !!!! Sulphur dioxide brooo
Musca domestica-> Musca-> Muscidae->Diptera-> insecta-> Arthropoda
Here Diptera is ??
Order!
How much urea is excreted by human per day ?
25-30g
