When there is plenty of light and higher concentration of `O_2`, what kind of pathway does the plant undergo? Anaylse the reasons.

(i) Consider the oxidation of nitric oxide to form NO_(2) 2NO_((g))+O_(2(g)) to 2NO_(2(g)) (a) Express the rate of the reaction in terms of changes in the concentration of NO, O_(2) and NO_(2) . (b) At a particular instant, when [O_(2)] is decreasing at 0.2mol L^(-1)s^(-1) at what rate is [NO_(2)] increasing at that instant? (ii) Classify the following as acid (or) base using Arrhenius concept 1. HNO_(3)" " 2.Ba(OH)_(2)" "3. H_(3)PO_(4)" " 4. CH_(3)COOH

What is meant by emasculation ? When and why does a plant breeder employ this technique ?

a. When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency. Explain why. b. When light travels from a rarer to a denser medium, the speed decreases. Does the reduction in speed imply a reduction in energy carried by the light wave? c. In the wave picture of light, intensity of light is determined by the square of the amplitude of the wave. What determine the intensity of light in the photon picture of light?

What do you conclude about the speed of light in diamond if the refractive index of diamond is 2.41? way from the mirror. Does the image become smaller or larger? What do you observe?

Assertion: Deficiency symptoms appear when the availability of the essential nutrients falls below the critical concentration. Reason: Critical concentration is that limited concentration of the essential element below which growth of the plant is reduced.