SSC (English Medium) इयत्ता १० वी - Maharashtra State Board Question Bank Solutions

Observe the following picture and answer the following questions:

1. What is rust?
2. Write the chemical formula of rust.
3. Write the reaction of oxidation of iron at the anode.
4. Write the reaction of oxidation of iron at the cathode.
5. What is corrosion?

Bifocal lens is required to correct _______ defect.

_______ is an alloy made from iron, carbon and chromium.

_______ is an alloy made from iron, carbon and chromium.

Which of the following method is used to prevent the accumulation of greenish layer on brass due to corrosion?

Which of the following method is used to prevent the accumulation of greenish layer on brass due to corrosion?

Corrosion of silver causes a black layer of _______.

Corrosion of silver causes a black layer of _______.

To prevent corrosion of iron and steel _______ method is used.

To prevent corrosion of iron and steel _______ method is used.

 _______ forms a green colour in the water.

 _______ forms a green colour in the water.

Stainless steel is an alloy of _______.

Stainless steel is an alloy of _______.

When one of the metals in an alloy is mercury the alloy is called _______.

When one of the metals in an alloy is mercury the alloy is called _______.

Pressure cooker : Anodizing : : Silver plated spoons : _______

Pressure cooker : Anodizing : : Silver plated spoons : _______

Rusting of iron : Fe₂O₃ : : corrosion of copper : ______

Rusting of iron : Fe₂O₃ : : corrosion of copper : ______