Question # 1

Which one of the following is brittle?

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Sodium

Aluminum

Selenium

Magnesium

Non-metals do not reaction with

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Strong bases

Concentrated acids

Dilute acids

Salts

Which one of the following metals burns with a brick red flame?

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Sodium

Magnesium

Iron

Calcium

Non-metals are generally soft, but which one of the following is extremely hard?

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Graphite

Phosphorus

Iodine

Diamond

____________ Is drawn in wires.

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Gold

Silver

Helium

Nil

All non-metals are non-conductor of heat and electricity except it

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Phosphorous

Sulphur

Graphite

Iodine

Which one is moderate reactive metal?

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Pb

Na

Ca

Mg

Hydrogen is a ____________

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Metal

Non metal

Metalloids

Nil

Which of the following is less malleable?

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Sodium

Iron

Gold

Sliver

Which one of the following is the lightest metal?

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Calcium

Magnesium

Lithium

Sodium

The core of the earth is mostly made from ____________

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Nickel

Iron

A % B

Copper

All are noble metals except:

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Silver

Gold

Hydrogen

Platinum

Electropositive character depends upon:

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Atomic size

Nuclear charge

Ionization energy

Electron affinity

Oxygen is ___________

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Metals

Non-metals

Gas

b & c

Which one is least reactive non-metal?

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P

C

CI

F

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Chemistry 9th Class English Medium Unit 8 Online Test MCQs With Answers

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