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Maximum oxidation state is shown by:
In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen?
Which of the following statements is false?
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of +2 oxidation state will be there in which of the following order? (At. No Cr= 24, Mn= 25, Fe=26, Co= 27)
The two functional groups characteristic of sugars are
World Ozone Day is celebrated on
Which of the following pairs has the same size?
Casparian strips occur in
Which of the following is not a product of light reaction of photosynthesis?
Nitration of aniline in strong acidic medium also gives m-nitroaniline because
The incorrect statement regarding the lanthanons is:
Name the gas that can readily decolourise acidified $\text{KMnO}_4$ solution.
Which one of the following elements is unable to form $MF_6^{3-}$ ion?
The reason for lanthanoid contraction is:
The correct electronic configuration of Gadolinium (Atomic number = 64) is:
Which of the following species is colourless?
The catalytic activity of transition metals and their compounds is ascribed mainly to:
Identify the incorrect statement.
Zinc can be coated on iron to produce galvanised iron, but the reverse is not possible because:
For a cell involving one electron $E^\circ_{cell} = 0.59\text{ V}$ at $298\text{ K}$, the equilibrium constant for the cell reaction is : [Given that $\frac{2.303 RT}{F} = 0.059\text{ V at } T = 298\text{ K}$]