MCQ
A distinct domain in an enzyme molecule may:
- AContribute to catalytic site
- BBind a coenzyme
- CBind an allosteric effector
- DAll of the above
Explanation:
A distinct domain in an enzyme molecule may be a catalytic site, allosteric site that binds to the cofactor to form holoenzyme.
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| Compound | Total stereoisomere |
| $(A)\, [Co(en)_2 \,Cl_2]^+$ | $(P)\, 2$ |
| $(B)\, [Co(en)_3]\, Cl_3$ | $(Q)\, 3$ |
| $(C) \,[Pt(NH_3)_2 \,Cl_2]$ | $(R)\, 4$ |
| $(D)\, [Pt(NH_3)_3 \,Cl_3]^+$ | $(S)\, 5$ |
Correct code
In the above first order reaction the concentration of $\mathrm{PCl}_{5}$ reduces from initial concentration $50\, mol\,\mathrm{L}^{-1}$ to $10\, \mathrm{~mol} \,\mathrm{~L}^{-1}$ in $120\, minutes$ at $300\, \mathrm{~K}$. The rate constant for the reaction at $300\, \mathrm{~K}$ is $\mathrm{X}$ $\times 10^{-2} \mathrm{~min}^{-1}$. The value of $x$ is $......$
$[$ Given $\log 5=0.6989]$