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[C] Nitrogen dioxide
[B] 7
[A] Formation of rainbow
[C] A non-metal
c. Wind
Both pollen and ovules mature simultaneously
b. egg, embryo sac, nucellus, integument
b. Microspore mother cells
d. Plant is dioecious and bears only staminate flowers.
The heating of Lead Nitrate produces brown fumes of “X” gas. Identify “X” from the following:
[C] Nitrogen dioxide
[C] Nitrogen dioxide
See lessFerrous sulphate crystals lose water when heated. How many molecules of water are lost?
[B] 7
[B] 7
See lessIn nature, this phenomenon is observed in
[A] Formation of rainbow
[A] Formation of rainbow
See lessThe element “x” having atomic number 16 is
[C] A non-metal
[C] A non-metal
See lessA particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by
c. Wind
c. Wind
See lessAutogamy can occur in a chasmogamous flower if
Both pollen and ovules mature simultaneously
Both pollen and ovules mature simultaneously
See lessStarting from the innermost part, the correct sequence of parts in an ovule are.
b. egg, embryo sac, nucellus, integument
b. egg, embryo sac, nucellus, integument
See lessDuring microsporogenesis, meiosis occurs in
b. Microspore mother cells
b. Microspore mother cells
See lessA dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is
d. Plant is dioecious and bears only staminate flowers.
d. Plant is dioecious and bears only staminate flowers.
See less