An organism is able to live to a culture medium cotaining nutrient A, by the enzyme catalysed reactions :-
`A overset(x) to B overset(y) to C` A mutant failed to survive on this medium but gre when nutrient B was added to it. Which gene of this mutant was defective :-

A mutant strain of Neurospora which fails to grow on a minimal medium unless supplemented with a nutrient is called

Consider the following first order competing reactions: X overset(k_(1)) to A + B and Y overset(k_(2)) to C + D If 50% of the reaction of X was completed when 96% of the reaction of Y was completed, the ratio of thoir rate constant ( k_2 // k_1 ) is:

The equation of a travelling plane sound wave has the form y=60 cos (1800t-5.3x) , where y is in micrometres, t in seconds and x in metres. Find (a). The ratio of the displacement amplitude with which the particle of the medium oscillate to the wavelength, (b).the velocity oscillation ammplitude of particles of the medium and its ratio to the wave propagation velocity , (c ).the oscillation amplitude of relative deformation of the medium and its relation to the velocity oscillation amplitude of particles of the medium, (d). the particle acceleration amplitude.

The equation of a travelling plane sound wave has the form y=60 cos (1800t-5.3x) , where y is in micrometres, t in seconds and x in metres. Find (a). The ratio of the displacement amplitude with which the particle of the medium oscillate to the wavelength, (b).the velocity oscillation ammplitude of particles of the medium and its ratio to the wave propagation velocity , (c ).the oscillation amplitude of relative deformation of the medium and its relation to the velocity oscillation amplitude of particles of the medium, (d). the particle acceleration amplitude.

a. A blackish brown coloured solid A when fused with alkali metal hydroxides in presence of air produces a dark green coloured compound B which on electrolytic.oxidation in alkaline medium gives a dark purple coloured compound C. Identify A, B and C and write the reactions involved. (b) what happens when an acidic solution of the green compotind 'B' is allowed to stand for sometime? Give the equations involved. What is this type of reaction called?