Some oxidation reactions of methane are ...

Some oxidation reactions of methane are given below. Which of them is/are controlled oxidation reactions?

`CH_(4)(g) + 2O_(2)(g) rarr CO_(2)(g)+2H_(2)O(l)`

`CH_(4)(g)+O_(2)(g)rarr C(s)+2H_(2)O(l)`

`CH_(4)(g)+O_(2)(g)overset(Mo_(2)O_(3))rarrHCHO+H_(2)O``2CH_(4)(g)+O_(2)(g)overset("Cu//523//100atm")rarr2CH_(3)OH`

`2CH_(4)(g)+O_(2)(g)overset("Cu//523//100atm")rarr2CH_(3)OH`

Text Solution

Verified by Experts

The correct Answer is:

C, D

Alkanes on heating with a regulated supply of dioxygen or air at high pressure and in the presence of suitable catalysts give a variety of oxidation products.
`2CH_(4)+O_(2)overset("Cu//523K//100atm")rarr2CH_(3)OH`
`CH_(4)+O_(2)overset(Mo_(2)O_(3))underset(Delta)rarrHCHO+H_(2)O`

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Which of the following reaction is oxidation- reduction?

`H^(o+)+OH^(ɵ)toH_(2)O`

`(1)/(2)H_(2)+(1)/(2)Cl_(2)toHCl`

`CaCO_(3)toCaO+CO_(2)`

(a) and (c)

Which of the following reactions involves oxidation-reaction?

`H_(2)+Br_(2) rarr 2HBr`

`HBr+AgNO_(3) rarr AgBr+HNO_(3)`

`NaBr+HCl rarr NaCl+HBr`

`2NaOH+H_(2)SO_(4) rarr NaSO_(4)+2H_(2)O`

Which is the intramolecular oxidation-reduction reaction?

`2KClO_(3) rarr 2KCl+3O_(2)`

`(NH_(4))_(2)Cr_(2)O_(7) rarr N_(2)+CrO_(3)+4H_(2)O`

`PCl_(5) rarr PCl_(3)+Cl_(2)`

All of the above