Q65 of 72 Page 99

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

HNO3 makes the iron passive because it form thin layer of oxide on the surface of iron.

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Match the items of Columns I and II and mark the correct option.

Code :


 64

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

 66

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

 67

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.