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JEE Main levelOne or more correct optionsDifficulty 2 of 3rx032

In which of the following does carbon have oxidation number zero? Use C-H as $- 1$ for carbon, C-O and C-Cl as positive. Select all correct options.

A $HCHO$
B $CH X_{2} Cl X_{2}$
C $CH X_{3} OH$
D $CO X_{2}$

Answer: A, B

HCHO

:

x + 2 - 2 = 0

gives 0.

CH X_{2} Cl X_{2}

:

x + 2 - 2 = 0

gives 0.

CH X_{3} OH

:

x + 4 - 2 = 0

gives

- 2

.

CO X_{2}

:

+ 4

.

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