For a chemical reaction to occur:

the reacting molecules must collide with each other

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reacting molecules should have sufficient energy at the time of collision

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reacting molecules must be properly oriented

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all of the above

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Solution

The correct option is C all of the above
The conditions for a chemical reaction to take place are:
i) the reacting molecules must collide with each other.
ii) reacting molecules should have sufficient energy at the time of a collision.
ii) reacting molecules must be properly oriented.

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For a chemical reaction to occur:

The correct option is C all of the aboveThe conditions for a chemical reaction to take place are:i) the reacting molecules must collide with each other.ii) reacting molecules should have sufficient energy at the time of a collision.ii) reacting molecules must be properly oriented.

The correct option is C all of the above
The conditions for a chemical reaction to take place are:
i) the reacting molecules must collide with each other.
ii) reacting molecules should have sufficient energy at the time of a collision.
ii) reacting molecules must be properly oriented.