Let A and B be two square matrices of order 3 and AB - O 3- where O 3 denotes the null matrix of order 3 - Then-A- must be A - O 3- B - O 3B- if A- O 3- must be B - O 3C- if A - O 3- must be B - O 3D- may be A - O 3- B - O 3

The chemical reaction $2 O_{3} \to 3 O_{2}$ involves two elementary steps :
$O_{3} f a s t - - \to O_{2} + O; O + O_{3} S l o w - -- \to 2 O_{2}$
The differential rate law expression will be :

Q. The correct order in which the

O - O

bond length increases in the following is:

The correct order of the O - O bond length in $O_{2}$ , $H_{2} O_{2}$ and $O_{3}$ is

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Let A and B be two square matrices of order 3 and AB=O3, where O3 denotes the null matrix of order 3. Then,

The correct option is D may be A≠O3,B≠O3Let A=⎡⎢⎣100000000⎤⎥⎦ and B=⎡⎢⎣000000001⎤⎥⎦ Here AB=O3 but neither A is null matrix nor B.

Let $A$ and $B$ be two square matrices of order $3$ and $A B = O_{3}$ , where $O_{3}$ denotes the null matrix of order $3$ . Then,