Q50 of 400 Page 133

Name two metals which cannot displace hydrogen from dilute acids.

The two metals which cannot displace hydrogen from dilute acids are copper and silver.

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50 Why does aluminium not react with water under ordinary conditions? 50 Name two metals which can displace hydrogen from dilute acids. 51 Why is sodium kept immersed in kerosene oil? 51 Why is white phosphorus kept immersed under water?