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Arrange the following in order of decreasing bond angle, giving reason : `NO_2, NO_2^(+), NO_2^(-)`
In aerobic respiration, the ultimate or final electron acceptor is
`"When a neuron is in resting state i.e. not conducting any impulse, the axonal membrane is :"`
In soil, the water available for root absorption is :
Which fish has to swim constantly to avoid sinking?
When ethylamine is treated with `CH_3 MgBr` the product is:
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