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CBSE Questions

Total Questions 9982
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)?
what is organic farming
whats the difference between parthenogenesis ang apomixis? hwz parthenocarpy different frm apomixis?
What is the function of endoplasmic reticulum?
IF THE EARTH STOPS ROTATING ON ITS AXIS,WHAT KIND OF CHANGES WOULD WE EXPECT?
DEFINE ELECTRIC CIRCUIT
what are the differences between a zygote and a foetus?And the differences between internal fertilisation and external fertilisation?
what is sperm duct? what does it perform in the male reproductive parts?
why we can't sneeze with our eyes open ?
What is the English word for the taste of chilly?
Difference between NIC AND MODEM IN A NETWORK?
how do plants grow i cant understand . tell in clear manner
How we can make a cone?
What is sustainable development?
please explain about HUMAN EYE
how to find antilog of -1.754 using log table?
what is monotany?
who invented helicopter?
NAME THE SEA SITUATED IN THE MIDDLE OF INDIA AND SRILANKA.