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SCHEDULE OF ASSUMPTIONS USED (Details) - $ / shares
6 Months Ended 12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Oct. 31, 2021
Oct. 31, 2020
Risk free rate of interest, minimum 1.34% 0.20% 0.20% 0.43%
Risk free rate of interest, maximum 2.59% 1.07% 1.07% 1.51%
Expected life of options 5 years     5 years
Expected annualized volatility, minimum 134.93% 130.88% 130.88% 120.13%
Expected annualized volatility, maximum 136.08% 140.05% 140.05% 188.46%
Expected dividend rate
Minimum [Member]        
Expected life of options   2 years 2 years  
Exercise price of options $ 0.40 $ 0.13 $ 0.13 $ 0.11
Maximum [Member]        
Expected life of options   5 years 5 years  
Exercise price of options $ 0.58 $ 0.70 $ 0.70 $ 0.16