Chemistry GK · all questions

Metal and Its Compounds
practice.

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Q221

In . . . . . . . . the process of iron, iron is protected by a coating of zinc.

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Q222

Which of the following alloys does not contain tin?

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Q223

What is a galvanized iron?

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Q224

Which of the following metal remains in liquid form at room temperature?

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Q225

Baking powder is a mixture of . . . . . . . . and . . . . . . . .

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Q226

Which of the following can be beaten into thin sheets?

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Q227

The chemical name of blue vitriol is . . . . . . . .

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Q228

Which of the following is a mineral required for the coagulation of blood?

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Q229

. . . . . . . . is the process of making a thick oxide layer on aluminium

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Q230

Which one of the following metals is liquid at room temperature?

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Q231

Of how many carats is the pure gold?

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Q232

Which element, is naturally very poisonous, was used in the traditional thermometer?

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Q233

Assertion (A): Sodium metal is stored under kerosene.
Reason (R): Metallic sodium melts when exposed to air.

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Q234

What is the name of the compound, which is expressed by the formula Al₂(SO₄)₃

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Q235

Which chemical element is required to harden steel?

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Q236

Of the following commonly used materials, the one that is not an alloy is

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Q237

Which of the following is a copper ore?

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Q238

Consider the following statements.
1. Bronze is an alloy of copper and tin.
2. White gold is an alloy of gold containing platinum and lead.
Which of the statement(s) given above is/are correct?

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Q239

Match List-I with List-II and select the correct answer:

List-I (Alloy)	List-II (Constituent)
a. Solder	1. Iron and carbon
b. Brass	2. Copper and zinc
c. Bronze	3. Copper and tin
d. Steel	4. Lead and tin

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Q240

Stainless steel contains

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