d & f block Elements-II Chemistry Test Series For NEET-2020

Test Preparation on d & f block Elements-II-Chemistry Test Series For NEET-2020

1.

Zinc can be coated on iron to produce galvanized iron but
thereverse is not possible. It is because

1Zinc has higher negative electrode potential than iron
2Zinc is lighter than iron
3Zinc has lower melting point than iron
4Zinc has lower negative electrode potential than iron

2.

Which one of the following organization’s iron and steel plant
was built to use charcoal as a source of power, to start with, but
later switched over to hydroelectricity

1The Tata Iron and Steel Company
2The Indian Iron and Steel Company
3Mysore Iron and Steel Limited
4Hindustan Steel Limited

It is the Tata iron and steel company.

3.

Which of the following metals corrodes readily in moist air

1Gold
2Silver
3Nickel
4Iron

4.

Permanent magnet is made from

1Cast iron
2Steel
3Wrought iron
4All of these

5.

In nitriding process of steel

1Steel is heated in an atmosphere of ammonia
2Steel is made red hot and then cooled
3Steel is made red hot and then plunged into oil for cooling
4None of these

The process of producing a hard coating of iron nitride on
steel is called nitriding.

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