Two maintain the alminium vessels for long life which of the following precautions must be taken?A. Aluminium vessels should not be stored with ordinary water for overnightB. Aluminium vessels should not be washed with washing powedersC. Aluminium vessles should be coated with oxide layer by anodic oxidationD. They should be dipped in conc `HNO_(3)`.

Two maintain the alminium vessels for long life which of the following

1.	Two maintain the alminium vessels for long life which of the following precautions must be taken?A. Aluminium vessels should not be stored with ordinary water for overnightB. Aluminium vessels should not be washed with washing powedersC. Aluminium vessles should be coated with oxide layer by anodic oxidationD. They should be dipped in conc `HNO_(3)`.
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