Name two soft metals which can be cut with a knife?

Genearlly metallic oxides are baisc and non-metallic oxides are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red?

Which of the following property is not responsible for copper to be used as electrical conductive wires?

Which non-metal is essential for our life and all living beings inhale it during breathing?

Name two major non-metals which are present in fertilizers and enhance the growth of plants.