Question # 1

Hydrogen and nitogen are used for teh manufacturing of.

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Benaspati ghee

Oxygen cylinder

Hydrogen flame

Urea

Metals are found in.................. state at room temperatures.

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Gas

Solid

Liquid

None of these

Ne belongs to

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Nitrogen family

Fluorine family

Noble gases

Alkaline earth metals

Na is symbol of.

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Neon

Nitrogen

Sodium

None of these

hardest matter on the Earth is.

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Lead

Diamond

Brick

Urea

Metals have .......... melting and boiling point.

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Low

High

Very low

Normal

Elements of group 17 are called.

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Carbon family

Noble gases

Nitrogen family

Halogen family

6th period in periodic table contains elements.

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2

8

16

32

Atomic number of th eelement of fourth position in second period.

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4

5

6

7

Number of elements in short period is.

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2

8

16

32

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Science 8th Class English Medium Chapter 5 Online Test MCQs With Answers

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